Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites

doi:10.1007/s40145-018-0281-5

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites
	Chen, Juanjuan 2,3; Chen, Jixin 2; Zhang, Hao 1,2; Hu, Minmin 1,2; Li, Meishuan 2
刊名	JOURNAL OF ADVANCED CERAMICS
	2018-12-01
卷号	7 期号:4 页码:317-324
关键词	h-BN Yb4Si2O7N2 composites microstructure mechanical properties machinability
ISSN号	2226-4108
DOI	10.1007/s40145-018-0281-5
通讯作者	Chen, Jixin(jxchen@imr.ac.cn)
英文摘要	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.
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
语种	英语
出版者	SPRINGEROPEN
WOS记录号	WOS:000453768100003
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/130786]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen, Jixin
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China 3.Univ Chinese Acad Sci, Beijing, 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.