ICCAS OpenIR
In situ preparation of Si3N4-TiN composite by pyrolysis of polytitanosilazane (PTSZ)
Luo Yongming; Zheng Zhimin; Xu Caihong; Mei Xuening
2009-04-01
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume35Issue:3Pages:1301-1303
AbstractSi3N4-TiN composite powders were obtained by in situ pyrolysis of polytitanosilazane. Dense Si3N4-TiN composites were prepared by hot-pressing at 1800 degrees C under 20 MPa for 2 h without sintering additive. Crystallization of amorphous PTSZ powders occurred between 1400 and 1500 degrees C with major phases, alpha-Si3N4, beta-Si3N4, and small amount of phase TiN. Mechanical properties and microstructure Of Si3N4 TiN composites were characterized. The results showed that the mechanical strength was 620 MPa, the fracture toughness was 7.8 MPa m(1/2) and the Vickers hardness was 8.5 GPa. SEM analysis indicated that Si3N4-TiN composite possessed excellent fracture toughness because TiN grains produced by in situ pyrolysis were well dispersed in Si(3)dN(4) matrix. (C) 2008 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
KeywordSintering Composites Mechanical Properties Si3n4
DOI10.1016/j.ceramint.2008.05.018
Indexed BySCI
Language英语
WOS IDWOS:000264016300061
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66930
Collection中国科学院化学研究所
Corresponding AuthorLuo Yongming
AffiliationChinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Luo Yongming,Zheng Zhimin,Xu Caihong,et al. In situ preparation of Si3N4-TiN composite by pyrolysis of polytitanosilazane (PTSZ)[J]. CERAMICS INTERNATIONAL,2009,35(3):1301-1303.
APA Luo Yongming,Zheng Zhimin,Xu Caihong,&Mei Xuening.(2009).In situ preparation of Si3N4-TiN composite by pyrolysis of polytitanosilazane (PTSZ).CERAMICS INTERNATIONAL,35(3),1301-1303.
MLA Luo Yongming,et al."In situ preparation of Si3N4-TiN composite by pyrolysis of polytitanosilazane (PTSZ)".CERAMICS INTERNATIONAL 35.3(2009):1301-1303.
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