Article(id=1322636226256028277, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322636193100050547, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190806, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1575993600000, receivedDateStr=2019-12-11, revisedDate=1576339200000, revisedDateStr=2019-12-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1793270649731, onlineDateStr=2026-10-29, pubDate=1600531200000, pubDateStr=2020-09-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793270649731, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793270649731, creator=13701087609, updateTime=1793270649731, updator=13701087609, issue=Issue{id=1322636193100050547, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='9', pageStart='1353', pageEnd='1510', issueExtLink='null', onlineDate='null', pubDate='1594569600000', pubDateStr='2020-07-13', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793270641826, creator='13701087609', updateTime=1793270641826, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1383, endPage=1389, ext={EN=ArticleExt(id=1322636226704818806, articleId=1322636226256028277, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Effect of Ce3+Doping on 0.65CaTiO3-0.35LaAlO3 Microwave Dielectric Ceramics, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

0.65CaTiO3-0.35(La1-xCex)AlO3 (CTLCA-x) microwave dielectric ceramic was successfully synthesized by the polymeric precursor method using EDTA as a chelating agent. The effects of Ce3+ ion doping on the microwave dielectric properties, microscopic structure and crystal structure were studied. The result indicated that the sintering temperature of CTLCA-x ceramic prepared by polymer precursor method was decreased by about 125 ℃ compared with conventional mixed solid method, a single orthorhombic phase for all the compositions can form and the unit cell volume increases linearly with the doping content x. Ce3+ ion dopant can increased the quality factor and dielectric constant, but the temperature coefficient of resonant frequency decreased. When x = 0.2, the optimal microwave dielectric properties of εr=42.7, Q×f=39 159 GHz, and τf= -7×10-6/℃ for the CTLCA-0.2 ceramics could be obtained, which sintered at 1 325 ℃ for 3 h.

, authors=Jieyu LUO, Yueming LI, Zhike LI, Zhumei WANG, Yan HONG, Zongyang SHEN, authorsList=Jieyu LUO, Yueming LI, Zhike LI, Zhumei WANG, Yan HONG, Zongyang SHEN, authorCompany=null, correspAuthors=Yueming LI, authorNote=

LUO Jieyu (1994-), male, Master candidate. E-mail:

, correspAuthorsNote=
LI Yueming (1965-), 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=1322636227463987831, articleId=1322636226256028277, tenantId=1146029695717560320, journalId=1263187385517883426, language=CN, title=Ce3+掺杂对0.65CaTiO3-0.35LaAlO3陶瓷微波介电性能的影响, columnId=null, journalTitle=硅酸盐学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

以EDTA为络合剂,采用聚合物前驱体法合成了0.65CaTiO3-0.35(La1-xCex)AlO3(CTLCA-x)微波介质陶瓷。研究了Ce3+取代La3+对陶瓷微波介电性能、显微结构以及晶体结构的影响。结果表明:采用聚合物前驱体法合成的CTLCA-x陶瓷,相比于传统固相法,烧结温度降低了125 ℃左右,在所研究的组成范围内均能形成正交相固溶体,随着Ce3+掺杂量x的逐渐增加,单位晶胞体积减小,陶瓷的品质因数Q×f和介电常数εr均增加,但频率温度系数τf下降。当x=0.2时,CTLCA-0.2陶瓷在1325 ℃保温3 h烧结后具有最佳的微波介电性能:εr=42.7,Q×f=39159 GHz,τf= -7×10-6/℃。

, authors=罗捷宇, 李月明, 李志科, 王竹梅, 洪燕, 沈宗洋, authorsList=罗捷宇, 李月明, 李志科, 王竹梅, 洪燕, 沈宗洋, authorCompany=null, correspAuthors=李月明, authorNote=

罗捷宇(1994—),男,硕士研究生。

, correspAuthorsNote=
李月明(1965—),男,教授。
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Ce3+掺杂对0.65CaTiO3-0.35LaAlO3陶瓷微波介电性能的影响
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罗捷宇 , 李月明 , 李志科 , 王竹梅 , 洪燕 , 沈宗洋
硅酸盐学报 | 2020,48(9): 1383-1389
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硅酸盐学报 | 2020 , 48 (9) : 1383 -1389
Ce3+掺杂对0.65CaTiO3-0.35LaAlO3陶瓷微波介电性能的影响
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罗捷宇 , 李月明 , 李志科, 王竹梅, 洪燕, 沈宗洋
作者信息
  • 景德镇陶瓷大学材料科学与工程学院;中国轻工业功能陶瓷材料重点实验室;江西省能量存储与转换陶瓷材料工程实验室,江西 景德镇 333403
通讯作者:
李月明(1965—),男,教授。
作者简介:

罗捷宇(1994—),男,硕士研究生。

Effect of Ce3+Doping on 0.65CaTiO3-0.35LaAlO3 Microwave Dielectric Ceramics
Jieyu LUO , Yueming LI , Zhike LI, Zhumei WANG, Yan HONG, Zongyang SHEN
Affiliations
  • School of Materials Science and Engineering, Jingdezhen Ceramic Institute; China National Light Industry Key Laboratory of Functional Ceramic Materials; Energy Storage and Conversion Ceramic Materials Engineering Laboratory of Jiangxi Province; Jingdezhen 333403, Jiangxi, China
  • Corresponding Author:
    LI Yueming (1965-), male, Ph.D., Professor. E-mail:

    LUO Jieyu (1994-), male, Master candidate. E-mail:

出版时间: 2020-09-20 doi: 10.14062/j.issn.0454-5648.20190806
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以EDTA为络合剂,采用聚合物前驱体法合成了0.65CaTiO3-0.35(La1-xCex)AlO3(CTLCA-x)微波介质陶瓷。研究了Ce3+取代La3+对陶瓷微波介电性能、显微结构以及晶体结构的影响。结果表明:采用聚合物前驱体法合成的CTLCA-x陶瓷,相比于传统固相法,烧结温度降低了125 ℃左右,在所研究的组成范围内均能形成正交相固溶体,随着Ce3+掺杂量x的逐渐增加,单位晶胞体积减小,陶瓷的品质因数Q×f和介电常数εr均增加,但频率温度系数τf下降。当x=0.2时,CTLCA-0.2陶瓷在1325 ℃保温3 h烧结后具有最佳的微波介电性能:εr=42.7,Q×f=39159 GHz,τf= -7×10-6/℃。

微波介质陶瓷  /  聚合物前驱体法  /  高品质因数  /  铈离子取代

0.65CaTiO3-0.35(La1-xCex)AlO3 (CTLCA-x) microwave dielectric ceramic was successfully synthesized by the polymeric precursor method using EDTA as a chelating agent. The effects of Ce3+ ion doping on the microwave dielectric properties, microscopic structure and crystal structure were studied. The result indicated that the sintering temperature of CTLCA-x ceramic prepared by polymer precursor method was decreased by about 125 ℃ compared with conventional mixed solid method, a single orthorhombic phase for all the compositions can form and the unit cell volume increases linearly with the doping content x. Ce3+ ion dopant can increased the quality factor and dielectric constant, but the temperature coefficient of resonant frequency decreased. When x = 0.2, the optimal microwave dielectric properties of εr=42.7, Q×f=39 159 GHz, and τf= -7×10-6/℃ for the CTLCA-0.2 ceramics could be obtained, which sintered at 1 325 ℃ for 3 h.

microwave dielectric ceramic  /  polymeric precursor method  /  high quality factor  /  cerium ion-doped
罗捷宇, 李月明, 李志科, 王竹梅, 洪燕, 沈宗洋. Ce3+掺杂对0.65CaTiO3-0.35LaAlO3陶瓷微波介电性能的影响. 硅酸盐学报, 2020 , 48 (9) : 1383 -1389 . DOI: 10.14062/j.issn.0454-5648.20190806
Jieyu LUO, Yueming LI, Zhike LI, Zhumei WANG, Yan HONG, Zongyang SHEN. Effect of Ce3+Doping on 0.65CaTiO3-0.35LaAlO3 Microwave Dielectric Ceramics[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (9) : 1383 -1389 . DOI: 10.14062/j.issn.0454-5648.20190806
  • 江西省科技落地计划(KJLD12084)
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2020年第48卷第9期
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doi: 10.14062/j.issn.0454-5648.20190806
  • 接收时间:2019-12-11
  • 首发时间:2026-10-29
  • 出版时间:2020-09-20
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  • 收稿日期:2019-12-11
  • 修回日期:2019-12-15
基金
江西省科技落地计划(KJLD12084)
作者信息
    景德镇陶瓷大学材料科学与工程学院;中国轻工业功能陶瓷材料重点实验室;江西省能量存储与转换陶瓷材料工程实验室,江西 景德镇 333403

通讯作者:

李月明(1965—),男,教授。
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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
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