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Synthesis and sintering of silicon nitride nano-powders via sodium reduction in liquid ammonia
Yang, Mei1,2; Wang, Qi1; Lv, Mingli1; Zhu, Hongmin1,3
2016-07-01
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Volume36Issue:8Pages:1899-1904
AbstractNano-sized silicon nitride powders were synthesized through the reduction of silicon tetrachloride (SiCl4) by sodium in liquid ammonia at around -40 degrees C. The product was in uniform particles of several nanometers, and in the amorphous form. The amorphous structure was stable up to 1200 degrees C and turned to the crystal structure of alpha-Si3N4 at 1300 degrees C, and then to beta-Si3N4 structure when heated at temperatures higher than 1450 degrees C. Via spark plasma sintering (SPS) dense bulks with 97.9% relative density of theoretic value and the grain size of 100-300 nm was successfully fabricated at 1500 degrees C without any sintering additives. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordNano-sized Silicon Nitride Powders Sodium Reduction Liquid Ammonia Spark Plasma Sintering
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.jeurceramsoc.2016.01.030
Indexed BySCI
Language英语
WOS KeywordCERAMICS ; AMMONOLYSIS ; FABRICATION ; COMPACTS ; PHASE
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000374082900007
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20999
Collection多相复杂系统国家重点实验室
Affiliation1.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Tohoku Univ, Grad Sch Engn, Dept Met, Sendai, Miyagi 9808579, Japan
Recommended Citation
GB/T 7714
Yang, Mei,Wang, Qi,Lv, Mingli,et al. Synthesis and sintering of silicon nitride nano-powders via sodium reduction in liquid ammonia[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2016,36(8):1899-1904.
APA Yang, Mei,Wang, Qi,Lv, Mingli,&Zhu, Hongmin.(2016).Synthesis and sintering of silicon nitride nano-powders via sodium reduction in liquid ammonia.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,36(8),1899-1904.
MLA Yang, Mei,et al."Synthesis and sintering of silicon nitride nano-powders via sodium reduction in liquid ammonia".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 36.8(2016):1899-1904.
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