NIMTE OpenIR  > 2018专题
Harmonized toughening and strengthening in pressurelessly reactive-sintered Ta0.8Hf0.2C-SiC composite
Zhang, Buhao; Yin, Jie; Huang, Yihua; Chen, Jian; Liu, Xuejian; Huang, Zhengren
2018
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume38Issue:16Pages:5610-5614
AbstractTa0.8Hf0.2C-27 vol%SiC (99.0% in relative density) composite was toughened and strengthened via pressurelessly in-situ reactive sintering process. HfC and beta-SiC particles were formed after reaction of HfSi2 and carbon black at 1650 degrees C. Ta0.8Hf0.2C was obtained from solid solutioning of HfC and commercial TaC. The beta-alpha phase transformation of SiC proceeded below 2200 degrees C. High aspect ratio, platelet-like alpha-SiC grains formed and interconnected as interlocking structures. Toughness and flexural strength values of 5.4 +/- 1.2 MPa m(1/2) and 443 +/- 22 MPa were measured respectively. The toughening mechanisms by highly directional growth of discontinuous alpha-SiC grains were crack branching, bridging and deflection behaviors.
KeywordHafnium Carbide Silicon-carbide Toughness Microstructure Indentation Ceramics
Subject AreaMaterials Science
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/16985
Collection2018专题
Recommended Citation
GB/T 7714
Zhang, Buhao,Yin, Jie,Huang, Yihua,et al. Harmonized toughening and strengthening in pressurelessly reactive-sintered Ta0.8Hf0.2C-SiC composite[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(16):5610-5614.
APA Zhang, Buhao,Yin, Jie,Huang, Yihua,Chen, Jian,Liu, Xuejian,&Huang, Zhengren.(2018).Harmonized toughening and strengthening in pressurelessly reactive-sintered Ta0.8Hf0.2C-SiC composite.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(16),5610-5614.
MLA Zhang, Buhao,et al."Harmonized toughening and strengthening in pressurelessly reactive-sintered Ta0.8Hf0.2C-SiC composite".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.16(2018):5610-5614.
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