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Architectural design and cryogenic synthesis of Si3N4@(TiN-Si3N4) for high conductivity
Yang, Mei1,2; Lv, Mingli1; Wang, Qi1; Zhu, Hongmin1,3
2018
发表期刊JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
卷号101期号:1页码:131-139
摘要Si3N4@(TiN-Si3N4) composites with heteroshelled structure were designed for enhanced conductivity and successfully synthesized through the simultaneous reduction and in-situ cocoating process in liquid ammonia at around -40 degrees C. The heteroshells were composed of nanosized TiN and Si3N4 particles, which were amorphous with the size ranging from 10 to 40nm. Using spark plasma sintering, dense bulk composite with >98.1% relative density of theoretical value were obtained and their electrical conductivity were increased to an adequate value (6.62 x 10(2) Scm(-1)) for electrical discharge machining by compositing 15 vol% TiN to Si3N4, which is superior to the previous reports. The excellent electric performance could be attributed to the heteroshelled structure which guarantees the conductive network can be formed and kept with minimal TiN content. The nanosized Si3N4 powders in the shells reduce the content of conductive powders and limit the growth of TiN particles.
关键词Coatings Composites Nanocomposites Silicon Nitride Titanium Nitride
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1111/jace.15165
收录类别SCI
语种英语
关键词[WOS]SILICON-NITRIDE ; SI3N4-TIN COMPOSITES ; MECHANICAL-PROPERTIES ; CERAMIC COMPOSITES ; TITANIUM NITRIDE ; TIN ; PARTICLES ; MICROSTRUCTURE
WOS研究方向Materials Science
WOS类目Materials Science, Ceramics
WOS记录号WOS:000414367400017
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23390
专题生化工程国家重点实验室
作者单位1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing, Peoples R China
2.Chinese Acad Sci, State Key Lab Biochem Engn, Inst Proc Engn, Beijing, Peoples R China
3.Tohoku Univ, Grad Sch Engn, Dept Met, Sendai, Miyagi, Japan
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Yang, Mei,Lv, Mingli,Wang, Qi,et al. Architectural design and cryogenic synthesis of Si3N4@(TiN-Si3N4) for high conductivity[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2018,101(1):131-139.
APA Yang, Mei,Lv, Mingli,Wang, Qi,&Zhu, Hongmin.(2018).Architectural design and cryogenic synthesis of Si3N4@(TiN-Si3N4) for high conductivity.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,101(1),131-139.
MLA Yang, Mei,et al."Architectural design and cryogenic synthesis of Si3N4@(TiN-Si3N4) for high conductivity".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 101.1(2018):131-139.
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