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Preparation of Si3N4 foam ceramics with nest-like cell structure by particle-stabilized foams
Yu JL; Yang JL; Li S(李森); Li HX; Huang Y; Yang, JL
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
2012-04-01
Volume95Issue:4Pages:1229-1233
ISSN0002-7820
AbstractSilicon nitride, Si3N4 foam ceramics were prepared by particle-stabilized foams, and the stabilization of Si3N4 foams and the performance of Si3N4 foam ceramics were investigated. The Si3N4 particle-stabilized foams had high stabilization, the dried green bodies had little shrinkage, and the structure of dried green body surface had no macro-pores and cracks. The Si3N4 foam ceramics with nest-like cell structure were obtained, nest pores were jointed by elongated rod-shaped beta-Si3N4 grains with aspect ratio of 30 or so, pore distribution was uniform, the average pore size was about 16 mu m, and the flexural strength was in the range of 3.8 to 77.2 MPa when porosity varied from 82.1% to 60.6%.
KeywordSilicon-nitride Ceramics Colloidal Particles Mechanical-properties Beta-si3n4 Particles Porous Ceramics Grain-growth Wet Foams Microstructure Additives Emulsions
Subject Area复合材料力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000302401600018
Funding OrganizationOur research work presented in this article is supported by the National High Technology Research and Development Program of China (Grant No 2010AA03A408), and Beijing Sci-tech Plan of China (Grant No 20101092117). The authors are grateful for these grants.
Department高温气体动力学国家重点实验室
Classification一类
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Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46381
Collection高温气体动力学国家重点实验室
Corresponding AuthorYang, JL
Recommended Citation
GB/T 7714
Yu JL,Yang JL,Li S,et al. Preparation of Si3N4 foam ceramics with nest-like cell structure by particle-stabilized foams[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2012,95(4):1229-1233.
APA Yu JL,Yang JL,Li S,Li HX,Huang Y,&Yang, JL.(2012).Preparation of Si3N4 foam ceramics with nest-like cell structure by particle-stabilized foams.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,95(4),1229-1233.
MLA Yu JL,et al."Preparation of Si3N4 foam ceramics with nest-like cell structure by particle-stabilized foams".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 95.4(2012):1229-1233.
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