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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
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Volume101Issue:1Pages:131-139
AbstractSi3N4@(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.
KeywordCoatings Composites Nanocomposites Silicon Nitride Titanium Nitride
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1111/jace.15165
Indexed BySCI
Language英语
WOS KeywordSILICON-NITRIDE ; SI3N4-TIN COMPOSITES ; MECHANICAL-PROPERTIES ; CERAMIC COMPOSITES ; TITANIUM NITRIDE ; TIN ; PARTICLES ; MICROSTRUCTURE
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000414367400017
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23390
Collection生化工程国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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