Article(id=1319232597272674367, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319232566922695375, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210954, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1636300800000, receivedDateStr=2021-11-08, revisedDate=1638115200000, revisedDateStr=2021-11-29, acceptedDate=null, acceptedDateStr=null, onlineDate=1792459161345, onlineDateStr=2026-10-20, pubDate=1658246400000, pubDateStr=2022-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792459161345, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792459161345, creator=13701087609, updateTime=1792459161345, updator=13701087609, issue=Issue{id=1319232566922695375, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='7', pageStart='1775', pageEnd='2066', issueExtLink='null', onlineDate='null', pubDate='1658246400000', pubDateStr='2022-07-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792459154109, creator='13701087609', updateTime=1792460038980, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319236278420357264, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319232566922695375, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319236278420357265, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319232566922695375, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1919, endPage=1928, ext={EN=ArticleExt(id=1319232597478195264, articleId=1319232597272674367, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Electromagnetic Properties and First-Principles Calculation of La3+ Doped SiC Nanowires, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

As one of microwave absorbing materials, SiC nanowires have a good microwave absorbing property, a wide microwave absorbing bandwidth and a low density. However, the poor impedance matching condition and low conductivity of SiC affect the improvement of its microwave absorbing property. To adjust the electronic structure of SiC and improve its electromagnetic properties, La3+ doped SiC nanowires were synthesized via carbothermal reduction at 1 600 ℃ with silicon powder, activated carbon and La2O3 powder as raw materials. The results show that doping La3+ can increase the aspect ratio and stacking fault density of SiC nanowires, and enhance their ability to form three-dimensional network structure and interface polarization, and improve their dielectric properties. At 2-18 GHz, the real part of permittivity increases from 3.08-13.48 (x = 0) to 3.33-19.75 (x = 1.0%), and the imaginary part of permittivity increases from 3.45-6.98 (x = 0) to 5.03-11.56 (x = 1.0%). Also, La3+ doping improves the conductivity of SiC nanowires and enhances its conductivity loss. SiC nanowires doped with 1.0% La3+ achieve a minimum reflection loss (RL) of -31.29 dB with the thickness of 2.0 mm and the effective absorption bandwidth with RL<-10 dB of 7.18 GHz due to the simultaneous enhancement of interface polarization and conductivity loss of SiC nanowires. The electronic structures of SiC nanowires and La3+doped SiC nanowires were analyzed via the first-principle calculations. The results show that the band gap of SiC nanowires decreases after La3+ doping, verifying the enhancement of their conductivity. La3+ doping can increase the stacking fault density of SiC nanowires and solve a problem that the stacking fault density decreases. The results of this study can provide an idea for the synthesis of SiC nanowires with a high electromagnetic absorbing capability.

, authors=Wangcong ZHOU, Xiangcheng LI, Yingli ZHU, Ping'an CHEN, Boquan ZHU, authorsList=Wangcong ZHOU, Xiangcheng LI, Yingli ZHU, Ping'an CHEN, Boquan ZHU, authorCompany=null, correspAuthors=Xiangcheng LI, authorNote=

ZHOU Wangcong (1997-), male, Master candidate. E-mail:

, correspAuthorsNote=
LI Xiangcheng (1978-), male, Ph.D., Professor. E-mail:
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1319232597843099713, articleId=1319232597272674367, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=La3+掺杂SiC纳米线的电磁性能与第一性原理计算, columnId=1263922770220560512, journalTitle=硅酸盐学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=

SiC纳米线具有吸波性能强、作用频带宽、密度低的优点,但是由于SiC较差的阻抗匹配条件和较低的电导率,影响了其吸波性能的进一步提高。为了调节SiC的电子结构,改善其电磁性能,以硅微粉、活性炭、La2O3粉末为原料通过碳热还原法在1600 ℃合成了La3+掺杂SiC纳米线。结果表明:掺杂La3+能够增大SiC纳米线的长径比和堆垛层错密度,增强其形成三维网状结构和界面极化的能力,其介电性能得到了提高。在2~18 GHz范围内,其介电实部由3.08~13.48(x=0)提升至3.33~19.75(x=1.0%),介电虚部由3.45~6.98(x=0)提升至5.03~11.56(x=1.0%)。同时La3+掺杂提高了SiC纳米线的电导率,增强了其电导损耗。由于SiC纳米线界面极化和电导损耗的同时增强,掺杂2.0%的La3+的SiC纳米线在厚度为2.0 mm时达到了最小反射损耗(RL) -31.46 dB,有效吸收带宽(RL<-10 dB)为7.18 GHz。通过第一性原理计算研究了SiC纳米线及La3+掺杂SiC纳米线的电子结构,结果表明,La3+掺杂后SiC纳米线的带隙减小,验证了其导电性的增强。La3+掺杂能够在引入掺杂元素的同时增大SiC纳米线的堆垛层错密度,克服了掺杂元素时堆垛层错密度降低的现象,为合成高吸波特性SiC纳米线提供了思路。

, authors=周王聪, 李享成, 朱颖丽, 陈平安, 朱伯铨, authorsList=周王聪, 李享成, 朱颖丽, 陈平安, 朱伯铨, authorCompany=null, correspAuthors=李享成, authorNote=

周王聪(1997—),男,硕士研究生。

, correspAuthorsNote=
李享成(1978—),男,博士,教授。
, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=3K40kTlxNjbteIzWzD2lDQ==, magXml=dm+YGp4VyAeShlhfzgpMCw==, pdfUrl=null, pdf=THBh87zAyCHkc0w/jcnlQQ==, pdfFileSize=6470272, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=j0zQDvmGYvJ+B9sKA5G2OA==, mapNumber=null, fund=null)}, authors=[Author(id=1322507020243161180, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=594084598@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322507020314464350, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020243161180, language=EN, stringName=Wangcong ZHOU, firstName=Wangcong, middleName=null, lastName=ZHOU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio={"content":"

ZHOU Wangcong (1997-), male, Master candidate. E-mail:

"}, bioImg=null, bioContent=

ZHOU Wangcong (1997-), male, Master candidate. E-mail:

, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507020385767519, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020243161180, language=CN, stringName=周王聪, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio={"content":"

周王聪(1997—),男,硕士研究生。

"}, bioImg=null, bioContent=

周王聪(1997—),男,硕士研究生。

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])]), Author(id=1322507020440293473, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=lixiangcheng@wust.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1322507020519985251, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020440293473, language=EN, stringName=Xiangcheng LI, firstName=Xiangcheng, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507020591288420, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020440293473, language=CN, stringName=李享成, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])]), Author(id=1322507020650008678, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322507020733894760, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020650008678, language=EN, stringName=Yingli ZHU, firstName=Yingli, middleName=null, lastName=ZHU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507020826169449, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020650008678, language=CN, stringName=朱颖丽, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])]), Author(id=1322507020889084011, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322507020956192877, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020889084011, language=EN, stringName=Ping'an CHEN, firstName=Ping'an, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507021023301742, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020889084011, language=CN, stringName=陈平安, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])]), Author(id=1322507021086216304, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322507021161713778, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507021086216304, language=EN, stringName=Boquan ZHU, firstName=Boquan, middleName=null, lastName=ZHU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507021233016947, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507021086216304, language=CN, stringName=朱伯铨, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])])], keywords=[Keyword(id=1322507021384011892, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=EN, orderNo=1, keyword=silicon carbide nanowires), Keyword(id=1322507021451120757, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=EN, orderNo=2, keyword=lanthanum ion doping), Keyword(id=1322507021505646710, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=EN, orderNo=3, keyword=electromagnetic wave absorption), Keyword(id=1322507021568561271, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=EN, orderNo=4, keyword=first principles), Keyword(id=1322507021648253048, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=EN, orderNo=5, keyword=effective absorption bandwidth), Keyword(id=1322507021727944825, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=CN, orderNo=1, keyword=碳化硅纳米线), Keyword(id=1322507021795053690, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=CN, orderNo=2, keyword=镧离子掺杂), Keyword(id=1322507021883134075, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=CN, orderNo=3, keyword=电磁波吸收), Keyword(id=1322507021954437244, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=CN, orderNo=4, keyword=第一性原理), Keyword(id=1322507022021546109, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, language=CN, orderNo=5, keyword=有效吸收带宽)], refs=null, funds=[Fund(id=1322507022189318270, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, awardId=51972242, language=CN, fundingSource=国家自然科学基金(51972242), fundOrder=null, country=null), Fund(id=1322507022289981567, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, awardId=2020CFA038, language=CN, fundingSource=湖北省自然科学基金创新群体项目(2020CFA038), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])], figs=null, attaches=null, journal=Journal(id=1263186332462366751, delFlag=0, nameCn=硅酸盐学报, nameEn=Journal of the Chinese Ceramic Society, nameHistory1=null, nameHistory2=null, issn=0454-5648, eissn=null, cn=11-2310/TQ, coden=null, periodic=0, language=CN, oaType=null, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=8Qg1+Is+LeRD1Lv6UJcXRg==, journalPrice=null, startedYear=null, abbrevIsoEn=Journal of the Chinese Ceramic Society, journalRemark=null, publicationField=null, createdTime=1779096690528, updatedTime=1788951192520, createdBy=18614031015, updatedBy=13041195026, firstLetterCn=G, firstLetterEn=G, subjectCode=Engineering, subjectName=null, subjectCodeEn=Engineering, subjectNameEn=null, picCn=8Qg1+Is+LeRD1Lv6UJcXRg==, picEn=AY9tl+TwuKtB81GF+w4WAg==, jcr=null, cjcr=null, exts=[JournalExt(id=1304519110767960749, language=CN, name=硅酸盐学报, nameHistory1=null, nameHistory2=null, managedBy=, sponsoredBy=, publishedBy=, editorOffice=, officeProv=null, officeCity=null, officeAddr=, officeZip=, editDirector=, officeDirector=null, officePhone=null, coverPicUrl=null, journalRemark=, submitArticleUrl=null, websiteUrl=, createdTime=1788951192800, updatedTime=1788951192800, createdBy=13041195026, updatedBy=13041195026, submissionGuidelinesUrl=, submissionAuthorUrl=https://gxyb.cbpt.cnki.net/index.aspx?t=1, submissionEditorUrl=https://gxyb.cbpt.cnki.net/index.aspx?t=3, submissionReviewUrl=https://gxyb.cbpt.cnki.net/index.aspx?t=2, submissionCeEditorUrl=, submissionAeEditorUrl=, option={"copyright":""}), JournalExt(id=1304519110839263918, language=EN, name=Journal of the Chinese Ceramic Society, nameHistory1=null, nameHistory2=null, managedBy=, sponsoredBy=, publishedBy=, editorOffice=, officeProv=null, officeCity=null, officeAddr=, officeZip=, editDirector=, officeDirector=null, officePhone=null, coverPicUrl=null, journalRemark=, submitArticleUrl=null, websiteUrl=, createdTime=1788951192817, updatedTime=1788951192817, createdBy=13041195026, updatedBy=13041195026, submissionGuidelinesUrl=, submissionAuthorUrl=https://gxyb.cbpt.cnki.net/index.aspx?t=1, submissionEditorUrl=https://gxyb.cbpt.cnki.net/index.aspx?t=3, submissionReviewUrl=https://gxyb.cbpt.cnki.net/index.aspx?t=2, submissionCeEditorUrl=, submissionAeEditorUrl=, option={"copyright":""})], databaseList=null, tenantJournalId=1263187385517883426, websiteList=[Website(id=1263188159895093557, webName=null, webTitle=null, webDomain=null, webCopyrigh=null, webIpcNo=null, seoTitle=null, seoKeywords=null, seoDescription=null, tenantJournalId=null, journalId=1263187385517883426, journalNameCn=null, journalNameEn=null, grayFlag=null, tenantId=1146029695717560320, platformId=null, journalGroupId=null, journalGroupNameCn=null, journalGroupNameEn=null, type=1, domain=https://castjournals.cast.org.cn/joweb/gsyxb/CN, language=CN, createTime=1779097126220, createBy=18614031015, updateTime=1779097837121, updateBy=18614031015, name=硅酸盐学报-中文, tplId=1146099689490845704, title=硅酸盐学报, delFlag=0, indexPage=/home, props=[WebsiteProps(id=1263191261578649862, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=articleTextType, value=kx, createTime=1779097865719, updateTime=1779097865719, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261545095427, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=banner, value=null, createTime=1779097865711, updateTime=1779097865711, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261599621385, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=grayFlag, value=0, createTime=1779097865724, updateTime=1779097865724, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261532512514, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=logo, value=https://castjournals.cast.org.cn/joweb/gsyxb/CN/file/pic?fileId=Oqq9gXZG0JiYeHvLNwX/eg==, createTime=1779097865708, updateTime=1779097865708, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261620592907, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=minRunFlag, value=0, createTime=1779097865729, updateTime=1779097865729, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261574455557, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=picServerUrl, value=https://castjournals.cast.org.cn/joweb/gsyxb/CN/file/pic, createTime=1779097865718, updateTime=1779097865718, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261616398602, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=silenceFlag, value=0, createTime=1779097865728, updateTime=1779097865728, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261566066948, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=staticResourcePath, value=https://castjournals.cast.org.cn/joweb/cast_kjdb_cn_619/, createTime=1779097865716, updateTime=1779097865716, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261587038471, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=themeColor, value=null, createTime=1779097865721, updateTime=1779097865721, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191261591232776, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188159895093557, code=themeStyle, value=null, createTime=1779097865722, updateTime=1779097865722, creator=18614031015, updator=18614031015)]), Website(id=1263188160188694841, webName=null, webTitle=null, webDomain=null, webCopyrigh=null, webIpcNo=null, seoTitle=null, seoKeywords=null, seoDescription=null, tenantJournalId=null, journalId=1263187385517883426, journalNameCn=null, journalNameEn=null, grayFlag=null, tenantId=1146029695717560320, platformId=null, journalGroupId=null, journalGroupNameCn=null, journalGroupNameEn=null, type=1, domain=https://castjournals.cast.org.cn/joweb/gsyxb/EN, language=EN, createTime=1779097126348, createBy=18614031015, updateTime=1779097825280, updateBy=18614031015, name=硅酸盐学报-英文, tplId=1146101810881728533, title=Journal of the Chinese Ceramic Society, delFlag=0, indexPage=/home, props=[WebsiteProps(id=1263191231102836987, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=articleTextType, value=kx, createTime=1779097858453, updateTime=1779097858453, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231052505336, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=banner, value=null, createTime=1779097858441, updateTime=1779097858441, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231186723070, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=grayFlag, value=0, createTime=1779097858473, updateTime=1779097858473, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231039922423, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=logo, value=https://castjournals.cast.org.cn/joweb/gsyxb/EN/file/pic?fileId=Oqq9gXZG0JiYeHvLNwX/eg==, createTime=1779097858438, updateTime=1779097858438, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231358689536, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=minRunFlag, value=0, createTime=1779097858514, updateTime=1779097858514, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231094448378, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=picServerUrl, value=https://castjournals.cast.org.cn/joweb/gsyxb/EN/file/pic, createTime=1779097858451, updateTime=1779097858451, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231195111679, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=silenceFlag, value=0, createTime=1779097858475, updateTime=1779097858475, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231086059769, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=staticResourcePath, value=https://castjournals.cast.org.cn/joweb/cast_kjdb_en_623/, createTime=1779097858449, updateTime=1779097858449, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231111225596, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=themeColor, value=null, createTime=1779097858455, updateTime=1779097858455, creator=18614031015, updator=18614031015), WebsiteProps(id=1263191231144780029, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1263188160188694841, code=themeStyle, value=null, createTime=1779097858463, updateTime=1779097858463, creator=18614031015, updator=18614031015)])], journalTitle=硅酸盐学报, weixinUrl=null, journalUrl=https://jccsoc.cbpt.cnki.net/, iacademicId=null, status=1, seqNo=null, journalTitleEn=Journal of the Chinese Ceramic Society, journalPhotoCn=8Qg1+Is+LeRD1Lv6UJcXRg==, journalPhotoEn=AY9tl+TwuKtB81GF+w4WAg==, journalFirstLetter=G, journalRecommend=null, journalNew=null, journalCollection=null, jcrJf=null, cjcrJf=null, jcrJfStr=null, cjcrJfStr=null, submissionFirstDecision=null, sciSubjectClassification=null, casSubjectClassification=null, citeScore=null, totalCitationFrequency=null, icpCode=null, psCode=null, advertisingLicenseCode=null, copyrightInformation=null, country=null, option=, provinceCode=null, provinceName=null, collectFlag=false, interPubPlatform=, interPubPlatformUrl=null), detailUrlCn=https://castjournals.cast.org.cn/joweb/gsyxb/CN/10.14062/j.issn.0454-5648.20210954, detailUrlEn=https://castjournals.cast.org.cn/joweb/gsyxb/EN/10.14062/j.issn.0454-5648.20210954, pdfUrlCn=https://castjournals.cast.org.cn/joweb/gsyxb/CN/PDF/10.14062/j.issn.0454-5648.20210954, pdfUrlEn=https://castjournals.cast.org.cn/joweb/gsyxb/EN/PDF/10.14062/j.issn.0454-5648.20210954, aliStartDate=0, aliEndDate=0, collectionFlag=false, citedCount=null, citedUrl=null, previewStatus=0, delFlag=0, hasFullText=0, orderTime=1658246400000, fullTextJson=null, articleText=null, reference=null)
收藏切换
La3+掺杂SiC纳米线的电磁性能与第一性原理计算
收藏切换
PDF下载
周王聪 , 李享成 , 朱颖丽 , 陈平安 , 朱伯铨
硅酸盐学报 | 研究论文 2022,50(7): 1919-1928
收起
收藏切换
硅酸盐学报 |研究论文 2022 , 50 (7) : 1919 -1928
La3+掺杂SiC纳米线的电磁性能与第一性原理计算
全屏
[Author(id=1322507020243161180, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=594084598@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322507020314464350, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020243161180, language=EN, stringName=Wangcong ZHOU, firstName=Wangcong, middleName=null, lastName=ZHOU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio={"content":"

ZHOU Wangcong (1997-), male, Master candidate. E-mail:

"}, bioImg=null, bioContent=

ZHOU Wangcong (1997-), male, Master candidate. E-mail:

, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507020385767519, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020243161180, language=CN, stringName=周王聪, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio={"content":"

周王聪(1997—),男,硕士研究生。

"}, bioImg=null, bioContent=

周王聪(1997—),男,硕士研究生。

, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])]), Author(id=1322507020440293473, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=lixiangcheng@wust.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1322507020519985251, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020440293473, language=EN, stringName=Xiangcheng LI, firstName=Xiangcheng, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507020591288420, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020440293473, language=CN, stringName=李享成, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])]), Author(id=1322507020650008678, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322507020733894760, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020650008678, language=EN, stringName=Yingli ZHU, firstName=Yingli, middleName=null, lastName=ZHU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507020826169449, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020650008678, language=CN, stringName=朱颖丽, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])]), Author(id=1322507020889084011, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322507020956192877, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020889084011, language=EN, stringName=Ping'an CHEN, firstName=Ping'an, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507021023301742, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507020889084011, language=CN, stringName=陈平安, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])]), Author(id=1322507021086216304, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322507021161713778, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507021086216304, language=EN, stringName=Boquan ZHU, firstName=Boquan, middleName=null, lastName=ZHU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322507021233016947, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, authorId=1322507021086216304, language=CN, stringName=朱伯铨, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322507020146692184, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, xref=null, ext=[AuthorCompanyExt(id=1322507020159275097, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China), AuthorCompanyExt(id=1322507020163469402, tenantId=1146029695717560320, journalId=1263187385517883426, articleId=1319232597272674367, companyId=1322507020146692184, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081)])])]
周王聪 , 李享成 , 朱颖丽, 陈平安, 朱伯铨
作者信息
  • 武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081
通讯作者:
李享成(1978—),男,博士,教授。
作者简介:

周王聪(1997—),男,硕士研究生。

Electromagnetic Properties and First-Principles Calculation of La3+ Doped SiC Nanowires
Wangcong ZHOU , Xiangcheng LI , Yingli ZHU, Ping'an CHEN, Boquan ZHU
Affiliations
  • The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
  • Corresponding Author:
    LI Xiangcheng (1978-), male, Ph.D., Professor. E-mail:

    ZHOU Wangcong (1997-), male, Master candidate. E-mail:

出版时间: 2022-07-20 doi: 10.14062/j.issn.0454-5648.20210954
文章导航
收藏切换

SiC纳米线具有吸波性能强、作用频带宽、密度低的优点,但是由于SiC较差的阻抗匹配条件和较低的电导率,影响了其吸波性能的进一步提高。为了调节SiC的电子结构,改善其电磁性能,以硅微粉、活性炭、La2O3粉末为原料通过碳热还原法在1600 ℃合成了La3+掺杂SiC纳米线。结果表明:掺杂La3+能够增大SiC纳米线的长径比和堆垛层错密度,增强其形成三维网状结构和界面极化的能力,其介电性能得到了提高。在2~18 GHz范围内,其介电实部由3.08~13.48(x=0)提升至3.33~19.75(x=1.0%),介电虚部由3.45~6.98(x=0)提升至5.03~11.56(x=1.0%)。同时La3+掺杂提高了SiC纳米线的电导率,增强了其电导损耗。由于SiC纳米线界面极化和电导损耗的同时增强,掺杂2.0%的La3+的SiC纳米线在厚度为2.0 mm时达到了最小反射损耗(RL) -31.46 dB,有效吸收带宽(RL<-10 dB)为7.18 GHz。通过第一性原理计算研究了SiC纳米线及La3+掺杂SiC纳米线的电子结构,结果表明,La3+掺杂后SiC纳米线的带隙减小,验证了其导电性的增强。La3+掺杂能够在引入掺杂元素的同时增大SiC纳米线的堆垛层错密度,克服了掺杂元素时堆垛层错密度降低的现象,为合成高吸波特性SiC纳米线提供了思路。

碳化硅纳米线  /  镧离子掺杂  /  电磁波吸收  /  第一性原理  /  有效吸收带宽

As one of microwave absorbing materials, SiC nanowires have a good microwave absorbing property, a wide microwave absorbing bandwidth and a low density. However, the poor impedance matching condition and low conductivity of SiC affect the improvement of its microwave absorbing property. To adjust the electronic structure of SiC and improve its electromagnetic properties, La3+ doped SiC nanowires were synthesized via carbothermal reduction at 1 600 ℃ with silicon powder, activated carbon and La2O3 powder as raw materials. The results show that doping La3+ can increase the aspect ratio and stacking fault density of SiC nanowires, and enhance their ability to form three-dimensional network structure and interface polarization, and improve their dielectric properties. At 2-18 GHz, the real part of permittivity increases from 3.08-13.48 (x = 0) to 3.33-19.75 (x = 1.0%), and the imaginary part of permittivity increases from 3.45-6.98 (x = 0) to 5.03-11.56 (x = 1.0%). Also, La3+ doping improves the conductivity of SiC nanowires and enhances its conductivity loss. SiC nanowires doped with 1.0% La3+ achieve a minimum reflection loss (RL) of -31.29 dB with the thickness of 2.0 mm and the effective absorption bandwidth with RL<-10 dB of 7.18 GHz due to the simultaneous enhancement of interface polarization and conductivity loss of SiC nanowires. The electronic structures of SiC nanowires and La3+doped SiC nanowires were analyzed via the first-principle calculations. The results show that the band gap of SiC nanowires decreases after La3+ doping, verifying the enhancement of their conductivity. La3+ doping can increase the stacking fault density of SiC nanowires and solve a problem that the stacking fault density decreases. The results of this study can provide an idea for the synthesis of SiC nanowires with a high electromagnetic absorbing capability.

silicon carbide nanowires  /  lanthanum ion doping  /  electromagnetic wave absorption  /  first principles  /  effective absorption bandwidth
周王聪, 李享成, 朱颖丽, 陈平安, 朱伯铨. La3+掺杂SiC纳米线的电磁性能与第一性原理计算. 硅酸盐学报, 2022 , 50 (7) : 1919 -1928 . DOI: 10.14062/j.issn.0454-5648.20210954
Wangcong ZHOU, Xiangcheng LI, Yingli ZHU, Ping'an CHEN, Boquan ZHU. Electromagnetic Properties and First-Principles Calculation of La3+ Doped SiC Nanowires[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (7) : 1919 -1928 . DOI: 10.14062/j.issn.0454-5648.20210954
  • 国家自然科学基金(51972242)
  • 湖北省自然科学基金创新群体项目(2020CFA038)
参考文献 引证文献
排序方式:
2022年第50卷第7期
PDF下载
53
11
引用本文
BibTeX
文章信息
doi: 10.14062/j.issn.0454-5648.20210954
  • 接收时间:2021-11-08
  • 首发时间:2026-10-20
  • 出版时间:2022-07-20
补充材料
相关文章
文章信息
作者
出版历史
  • 收稿日期:2021-11-08
  • 修回日期:2021-11-29
基金
国家自然科学基金(51972242)
湖北省自然科学基金创新群体项目(2020CFA038)
作者信息
    武汉科技大学,省部共建耐火材料与冶金国家重点实验室,武汉 430081

通讯作者:

李享成(1978—),男,博士,教授。
参考文献
分享链接
https://castjournals.cast.org.cn/joweb/gsyxb/CN/10.14062/j.issn.0454-5648.20210954
分享至
全文二维码

扫描看全文

引用本文
BibTeX
本文的引用情况
2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏