Dielectric property of Si3N4/SiBCN composite ceramics doped with SiC

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

Si3N4/SiBCN composite ceramics were prepared by infiltrating and pyrolyzing liquid polyborosilazane in porous Si3N4 ceramics. To increase their wave-absorbing ability, SiC nanoparticles and SiC film obtained by chemical vapor infiltration were separately introduced into the composite ceramics. The surface morphology, element and phase composition of ceramics were analyzed by means of scanning electron microscopy, energy dispersive spectrometer and X-ray diffraction. Dielectric and electromagnetic wave absorbing property researches show that the permittivity and dielectric loss of the ceramics were effectively improved and the electromagnetic reflection coefficient was visibly decreased when SiC was loaded. It is indicated that SiC is an effective dielectric lossy absorbent, and the Si3N4/SiBCN composite ceramics containing SiC possess the great potential in the application of wave-absorbing material.

源语言英语
主期刊名Material and Manufacturing Technology IV
91-95
页数5
DOI
出版状态已出版 - 2013
活动2013 4th International Conference on Material and Manufacturing Technology, ICMMT 2013 - Seoul, 韩国
期限: 11 5月 201312 5月 2013

出版系列

姓名Advanced Materials Research
748
ISSN(印刷版)1022-6680

会议

会议2013 4th International Conference on Material and Manufacturing Technology, ICMMT 2013
国家/地区韩国
Seoul
时期11/05/1312/05/13

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