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Pressurelessly densified (Zr,Hf)B2-SiC ceramics by co-doping hafnium-boron carbides
Yin, Jie1,2; Zhang, Buhao1,3; Liu, Xuejian1; Huang, Zhengren1
2017
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume727Pages:706-710
Abstract(Zr,Hf)B2-SiC ceramics were densified at 2200 °C without the existence of external pressure, using commercially available ZrB2, SiC, HfC and B4C powders as raw materials. HfC reacted with B4C to form HfB2and C in-situ: the continuous solid solution formation of ZrB2-HfB2inhibited the grain growth of matrix during high temperature effectively, and meanwhile played a critical role in enhancing densification. The mechanical properties, including flexural strength, elastic modulus, Vickers hardness and indentation toughness were tailored by compositional designing of original ZrB2-SiC-HfB2-B4C (ZSHB) recipe, which excelled its ZrB2-SiC counterpart. Novel reactive densification mechanism was discussed as well. © 2017 Elsevier B.V.
DOI10.1016/j.jallcom.2017.08.092
EI Accession Number20173504088008
EI KeywordsHafnium compounds
EI Classification Number804.2 Inorganic Compounds - 812.1 Ceramics - 931.2 Physical Properties of Gases, Liquids and Solids - 933.1.2 Crystal Growth - 951 Materials Science
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25521
Collection中国科学院上海硅酸盐研究所
Affiliation1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.Bureau of Major R&D Programs, Chinese Academy of Sciences, Beijing; 100864, China;
3.University of the Chinese Academy of Sciences, Beijing; 100039, China
Recommended Citation
GB/T 7714
Yin, Jie,Zhang, Buhao,Liu, Xuejian,et al. Pressurelessly densified (Zr,Hf)B2-SiC ceramics by co-doping hafnium-boron carbides[J]. Journal of Alloys and Compounds,2017,727:706-710.
APA Yin, Jie,Zhang, Buhao,Liu, Xuejian,&Huang, Zhengren.(2017).Pressurelessly densified (Zr,Hf)B2-SiC ceramics by co-doping hafnium-boron carbides.Journal of Alloys and Compounds,727,706-710.
MLA Yin, Jie,et al."Pressurelessly densified (Zr,Hf)B2-SiC ceramics by co-doping hafnium-boron carbides".Journal of Alloys and Compounds 727(2017):706-710.
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