Enhancing toughness and strength of SiC ceramics with reduced graphene oxide by HP sintering

doi:10.1016/j.jeurceramsoc.2018.05.033

	Enhancing toughness and strength of SiC ceramics with reduced graphene oxide by HP sintering
	Huang Yihua ; Jiang Dongliang 1; Zhang Xianfen 2; Liao Zhenkui 3; Huang Zhengren 1
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2018
卷号	38 期号:13 页码:4329
关键词	Silicon carbide Graphene Toughness Strength Hot press sintering
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2018.05.033
英文摘要	In this paper, the silicon carbide-reduced graphene oxide (SiC/rGO) composites with different content of rGO are investigated. The hot pressing (HP) at 2100 degrees C for 60 min under a uniaxial pressure of 40 M Pa resulted in a near fully-dense SiC/rGO composite. In addition, the influence of graphene reinforcement on the sintering process, microstructure, and mechanical properties (fracture toughness, bending strength, and Vickers hardness) of SiC/rGO composites is discussed. The fracture toughness of SiC/rGO composites (7.9MPam(1/2)) was strongly enhanced by incorporating rGO into the SiC matrix, which was 97% higher than the solid-state sintering SiC ceramics (SSiC) by HP. Meanwhile, the bending strength of the composites reached 625 M Pa, which was 17.3% higher than the reference materials (SSiC). The microstructure of the composites revealed that SiC grains were isolated by rGO platelets, which lead to the toughening of the composite through rGO pull out/debonding and crack bridging mechanisms.
学科主题	Materials Science, Ceramics
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000438323300003
资助机构	Project supported by the National Natural Science Foundation of China (Grant Nos. 51572276), Youth Innovation Promotion Association, CAS, and the State Key Laboratory of High Performance Ceramics and Superfine Microstructures. ; Project supported by the National Natural Science Foundation of China (Grant Nos. 51572276), Youth Innovation Promotion Association, CAS, and the State Key Laboratory of High Performance Ceramics and Superfine Microstructures.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24661]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 3.Nanjing Univ Sci & Technol, Nanjing 210094, Jiangsu, Peoples R China 4.Shanghai Haokui Mat Ltd, Shanghai 200444, Peoples R China
推荐引用方式 GB/T 7714	Huang Yihua,Jiang Dongliang,Zhang Xianfen,et al. Enhancing toughness and strength of SiC ceramics with reduced graphene oxide by HP sintering[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(13):4329, 4337.
APA	Huang Yihua,Jiang Dongliang,Zhang Xianfen,Liao Zhenkui,&Huang Zhengren.(2018).Enhancing toughness and strength of SiC ceramics with reduced graphene oxide by HP sintering.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(13),4329.
MLA	Huang Yihua,et al."Enhancing toughness and strength of SiC ceramics with reduced graphene oxide by HP sintering".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.13(2018):4329.