Article(id=1322612192470487896, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612191723897081, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20190255, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1555516800000, receivedDateStr=2019-04-18, revisedDate=1557936000000, revisedDateStr=2019-05-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1793264919631, onlineDateStr=2026-10-29, pubDate=1584633600000, pubDateStr=2020-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793264919631, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793264919631, creator=13701087609, updateTime=1793264919631, updator=13701087609, issue=Issue{id=1322612191723897081, tenantId=1146029695717560320, journalId=1263187385517883426, year='2020', volume='48', issue='3', pageStart='325', pageEnd='462', issueExtLink='null', onlineDate='null', pubDate='1584633600000', pubDateStr='2020-03-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793264919452, creator='13701087609', updateTime=1793277037156, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322663017125368549, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612191723897081, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322663017125368550, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322612191723897081, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=343, endPage=350, ext={EN=ArticleExt(id=1322612192655037273, articleId=1322612192470487896, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Dielectric and Electromagnetic Absorbing Properties of B4C Powders Fabricated by Combustion Synthesis, columnId=null, journalTitle=Journal of the Chinese Ceramic Society, columnName=null, runingTitle=null, highlight=null, articleAbstract=

In order to evaluate the absorbing properties of B4C ceramic absorber, B4C powder was fabricated via combustion synthesis with carbon black and boron oxide as raw materials, and Mg as a reductant. The microstructure of the products was characterized by X-ray diffraction, scanning electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. The samples for dielectric test were prepared with B4C powder as an absorber and paraffin as a binder, respectively. The complex permittivity of samples containing different amount of B4C absorber was tested by a rectangular waveguide method at X band (8.2 GHz-12.4 GHz), and the reflection loss values were calculated based on the transmission line theory. The results show that the impurities such as MgO and Mg3B2O6 can be removed by pickling. The grain size of the product is 0.4-1.0 μm with an oblique hexagonal structure. The real and imaginary parts of the complex permittivity increase with the increase of the content of B4C powder. When the content is 50% (mass fraction), the real and imaginary parts are 19.33 and 10.40, respectively. The calculated results show that the optimum electromagnetic wave absorption performance can be obtained at B4C powder content of 33%. The minimum reflection loss value is -21.1 dB when the thickness is 2.3 mm, and the effective bandwidth reaches 2.95 GHz. It is indicated that B4C powder could be a promising candidate as a high-temperature microwave absorber.

, authors=Donghai DING, Bing BAI, Guoqing XIAO, Xiaochuan CHONG, Jing WANG, Zipei LI, authorsList=Donghai DING, Bing BAI, Guoqing XIAO, Xiaochuan CHONG, Jing WANG, Zipei LI, authorCompany=null, correspAuthors=null, authorNote=

DING Donghai (1983-), male, Associate Professor, Postdoctor. E-mail:

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以炭黑和B2O3为原料、金属Mg为还原剂,采用燃烧合成法制备B4C粉体。以燃烧合成的B4C粉体为吸收剂、石蜡为结合剂制备试样,采用矩形波导法测试不同B4C掺量试样在X波段(8.2~12.4 GHz)的复介电常数,基于传输线理论计算试样反射损耗。结果表明:燃烧合成产物酸洗后可除去MgO、Mg3B2O6等杂质相,产物晶粒尺寸为0.4~1.0 μm,为斜六方晶体结构;试样复介电常数实部和虚部随B4C掺量增加而增大,掺量50%(质量分数)时实部和虚部分别达到19.33和10.40;掺量为33%时,试样吸波性能最佳,当厚度为2.3 mm时,其反射损耗峰值为-21.1 dB,有效吸收频带达2.95 GHz。说明碳化硼是具有前景的高温微波吸收剂。

, authors=丁冬海, 白冰, 肖国庆, 种小川, 王晶, 李子沛, authorsList=丁冬海, 白冰, 肖国庆, 种小川, 王晶, 李子沛, authorCompany=null, correspAuthors=null, authorNote=

丁冬海(1983—),男,副教授,博士后。

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燃烧合成碳化硼粉体及其介电吸波性能
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丁冬海 , 白冰 , 肖国庆 , 种小川 , 王晶 , 李子沛
硅酸盐学报 | 2020,48(3): 343-350
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硅酸盐学报 | 2020 , 48 (3) : 343 -350
燃烧合成碳化硼粉体及其介电吸波性能
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丁冬海 , 白冰, 肖国庆, 种小川, 王晶, 李子沛
作者信息
  • 西安建筑科技大学材料科学与工程学院,西安 710055
作者简介:

丁冬海(1983—),男,副教授,博士后。

Dielectric and Electromagnetic Absorbing Properties of B4C Powders Fabricated by Combustion Synthesis
Donghai DING , Bing BAI, Guoqing XIAO, Xiaochuan CHONG, Jing WANG, Zipei LI
Affiliations
  • Collage of Material Science and Engineering, Xi'an University of Architectural and Technology, Xi'an 710055, China
  • DING Donghai (1983-), male, Associate Professor, Postdoctor. E-mail:

出版时间: 2020-03-20 doi: 10.14062/j.issn.0454-5648.20190255
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以炭黑和B2O3为原料、金属Mg为还原剂,采用燃烧合成法制备B4C粉体。以燃烧合成的B4C粉体为吸收剂、石蜡为结合剂制备试样,采用矩形波导法测试不同B4C掺量试样在X波段(8.2~12.4 GHz)的复介电常数,基于传输线理论计算试样反射损耗。结果表明:燃烧合成产物酸洗后可除去MgO、Mg3B2O6等杂质相,产物晶粒尺寸为0.4~1.0 μm,为斜六方晶体结构;试样复介电常数实部和虚部随B4C掺量增加而增大,掺量50%(质量分数)时实部和虚部分别达到19.33和10.40;掺量为33%时,试样吸波性能最佳,当厚度为2.3 mm时,其反射损耗峰值为-21.1 dB,有效吸收频带达2.95 GHz。说明碳化硼是具有前景的高温微波吸收剂。

燃烧合成法  /  碳化硼粉末  /  吸波性能

In order to evaluate the absorbing properties of B4C ceramic absorber, B4C powder was fabricated via combustion synthesis with carbon black and boron oxide as raw materials, and Mg as a reductant. The microstructure of the products was characterized by X-ray diffraction, scanning electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy. The samples for dielectric test were prepared with B4C powder as an absorber and paraffin as a binder, respectively. The complex permittivity of samples containing different amount of B4C absorber was tested by a rectangular waveguide method at X band (8.2 GHz-12.4 GHz), and the reflection loss values were calculated based on the transmission line theory. The results show that the impurities such as MgO and Mg3B2O6 can be removed by pickling. The grain size of the product is 0.4-1.0 μm with an oblique hexagonal structure. The real and imaginary parts of the complex permittivity increase with the increase of the content of B4C powder. When the content is 50% (mass fraction), the real and imaginary parts are 19.33 and 10.40, respectively. The calculated results show that the optimum electromagnetic wave absorption performance can be obtained at B4C powder content of 33%. The minimum reflection loss value is -21.1 dB when the thickness is 2.3 mm, and the effective bandwidth reaches 2.95 GHz. It is indicated that B4C powder could be a promising candidate as a high-temperature microwave absorber.

combustion synthesis  /  boron carbide powder  /  electromagnetic absorbing performance
丁冬海, 白冰, 肖国庆, 种小川, 王晶, 李子沛. 燃烧合成碳化硼粉体及其介电吸波性能. 硅酸盐学报, 2020 , 48 (3) : 343 -350 . DOI: 10.14062/j.issn.0454-5648.20190255
Donghai DING, Bing BAI, Guoqing XIAO, Xiaochuan CHONG, Jing WANG, Zipei LI. Dielectric and Electromagnetic Absorbing Properties of B4C Powders Fabricated by Combustion Synthesis[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (3) : 343 -350 . DOI: 10.14062/j.issn.0454-5648.20190255
  • 国家自然科学基金(51502236; 51572212; 51772236)
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2020年第48卷第3期
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doi: 10.14062/j.issn.0454-5648.20190255
  • 接收时间:2019-04-18
  • 首发时间:2026-10-29
  • 出版时间:2020-03-20
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  • 收稿日期:2019-04-18
  • 修回日期:2019-05-16
基金
国家自然科学基金(51502236; 51572212; 51772236)
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    西安建筑科技大学材料科学与工程学院,西安 710055
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2种不同金属材料的力学参数
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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
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
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