Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites

doi:10.1007/s40145-018-0281-5

IMR OpenIR

	Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites
	Chen, Juanjuan 1,2; Chen, Jixin 1; Zhang, Hao 1,3; Hu, Minmin 1,3; Li, Meishuan 1
通讯作者	Chen, Jixin(jxchen@imr.ac.cn)
	2018-12-01
发表期刊	JOURNAL OF ADVANCED CERAMICS
ISSN	2226-4108
卷号	7 期号:4 页码:317-324
摘要	A series of h-BN based composites with Yb4Si2O7N2 as a secondary phase were successfully synthesized by an in situ reaction hot pressing method. It was found that the relative density and room-temperature mechanical properties monotonically increased with increasing the content of Yb4Si2O7N2 from 20 to 50 vol%. When 50 vol% Yb4Si2O7N2 was introduced, the relative density of the composite reached 98.75%, and its flexural strength, compressive strength, fracture toughness, and hardness reached 338 +/- 10 MPa, 803 +/- 49 MPa, 2.06 +/- 0.06 MPam(1/2), and 2.69 +/- 0.10 GPa, respectively. The strengthening effect of Yb4Si2O7N2 was mainly attributed to its high modulus and high hardness. Fine microstructure was also advantageous to strength and could lead to more tortuous crack propagation paths and then improve the fracture toughness of the composites simultaneously. Meanwhile, the composites maintained good machinability.
关键词	h-BN Yb4Si2O7N2 composites microstructure mechanical properties machinability
资助者	National Natural Science Foundation of China
DOI	10.1007/s40145-018-0281-5
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50802099] ; National Natural Science Foundation of China[51072201]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000453768100003
出版者	SPRINGEROPEN
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/130785
专题	中国科学院金属研究所
通讯作者	Chen, Jixin
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Chen, Juanjuan,Chen, Jixin,Zhang, Hao,et al. Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites[J]. JOURNAL OF ADVANCED CERAMICS,2018,7(4):317-324.
APA	Chen, Juanjuan,Chen, Jixin,Zhang, Hao,Hu, Minmin,&Li, Meishuan.(2018).Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites.JOURNAL OF ADVANCED CERAMICS,7(4),317-324.
MLA	Chen, Juanjuan,et al."Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites".JOURNAL OF ADVANCED CERAMICS 7.4(2018):317-324.