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Pyrolysis synthesis of Si-B-C-N ceramics and their thermal stability

文献类型：期刊论文

作者Luo, Lijie1,2; Ge, Min1; Zhang, Weigang1
刊名CERAMICS INTERNATIONAL
出版日期2013-09-01
卷号39期号:7页码:7903-7909
关键词Calcination X-ray methods Thermal properties Si-B-C-N ceramics
ISSN号0272-8842
英文摘要Si-B-C-N ceramics were synthesized by co-pyrolyzing hybrid polymeric precursors of polycarbosilane (PCS) and polyborazine (PBN). The pyrolysis behavior and structural evolution of the hybrid precursor, the microstructure and composition of the prepared Si-B-C-N ceramics were fully investigated. It was found that the copyrolysis of hybrid polymeric precursors in Ar led to the release of CH4, CH3NH2 and CH3CN gases at temperatures ranging from 200 to 1100 degrees C, and finally resulted in the formation of amorphous Si-B-C-N ceramics. In particular, the Si-B-C-N ceramics formed from the hybrid precursor with PBN/PCS mass ratio of 1 could keep amorphous state up to the annealing temperature of 1800 degrees C with weight change of only 2.08%. But this amorphous ceramics would decompose to form crystalline SiC, EN and Si3N4 at 2000 degrees C. Additionally, compared with PCS-derived SiC ceramics, the Si-B-C-N ceramics showed improved anti-oxidation performance up to 1300 degrees C due to the formation of borosilicate layers covering the ceramics. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Ceramics
研究领域[WOS]Materials Science
关键词[WOS]HIGH-TEMPERATURE ; POLYMERIC PRECURSORS ; CONVERSION REACTIONS ; BORON-NITRIDE ; COMPOSITES ; FIBERS ; BEHAVIOR ; CARBON ; CRYSTALLIZATION ; MICROSTRUCTURE
收录类别SCI
语种英语
WOS记录号WOS:000325443300080
公开日期2015-05-27
源URL[http://ir.ipe.ac.cn/handle/122111/13349]  
专题过程工程研究所_研究所（批量导入）
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Luo, Lijie,Ge, Min,Zhang, Weigang. Pyrolysis synthesis of Si-B-C-N ceramics and their thermal stability[J]. CERAMICS INTERNATIONAL,2013,39(7):7903-7909.
APA Luo, Lijie,Ge, Min,&Zhang, Weigang.(2013).Pyrolysis synthesis of Si-B-C-N ceramics and their thermal stability.CERAMICS INTERNATIONAL,39(7),7903-7909.
MLA Luo, Lijie,et al."Pyrolysis synthesis of Si-B-C-N ceramics and their thermal stability".CERAMICS INTERNATIONAL 39.7(2013):7903-7909.

入库方式： OAI收割

来源：过程工程研究所

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