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Characterization of porous silicon nitride/silicon oxynitride composite ceramics produced by sol infiltration
Jia DC; 邵颖峰(Shao YF); Liu BY; Zhou Y; Jia D
Source PublicationMaterials Chemistry and Physics
2010
Volume124Issue:1Pages:97-101
ISSN0254-0584
AbstractPorous silicon nitride/silicon oxynitride composite ceramics were fabricated by silica sol infiltration of aqueous gelcasting prefabricated Si3N4 green compact. Silica was introduced by infiltration to increase the green density of specimens, so suitable properties with low shrinkage of ceramics were achieved during sintering at low temperature. Si2N2O was formed through reaction between Si3N4 and silica sol at a temperature above 1550 degrees C. Si3N4/Si2N2O composite ceramics with a low linear shrinkage of 1.3-5.7%, a superior strength of 95-180 MPa and a moderate dielectric constant of 4.0-5.0 (at 21-39 GHz) were obtained by varying infiltration cycle and sintering temperature. (C) 2010 Published by Elsevier B.V.
KeywordCeramics Sintering Dielectric Properties Mechanical Properties Thermal-shock Resistance Dielectric-properties Nitride Ceramics Behavior Si2n2o Microstructure Powder
DOI10.1016/j.matchemphys.2010.05.073
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000282607900024
WOS KeywordTHERMAL-SHOCK RESISTANCE ; DIELECTRIC-PROPERTIES ; NITRIDE CERAMICS ; BEHAVIOR ; SI2N2O ; MICROSTRUCTURE ; POWDER
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China (NSFC) [90505011] ; Harbin Institute of Technology ; Science Fund for Distinguished Young Scholars of Heilongjiang province
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/43459
Collection非线性力学国家重点实验室
Corresponding AuthorJia D
Recommended Citation
GB/T 7714
Jia DC,Shao YF,Liu BY,et al. Characterization of porous silicon nitride/silicon oxynitride composite ceramics produced by sol infiltration[J]. Materials Chemistry and Physics,2010,124(1):97-101
APA Jia DC,邵颖峰,Liu BY,Zhou Y,&Jia D.(2010).Characterization of porous silicon nitride/silicon oxynitride composite ceramics produced by sol infiltration.Materials Chemistry and Physics,124(1),97-101.
MLA Jia DC,et al."Characterization of porous silicon nitride/silicon oxynitride composite ceramics produced by sol infiltration".Materials Chemistry and Physics 124.1(2010):97-101.
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