Yield Strength of Transparent MgAl2O4 Nano-Ceramic at High Pressure and Temperature

doi:10.1007/s11671-010-9647-5

IMR OpenIR

	Yield Strength of Transparent MgAl2O4 Nano-Ceramic at High Pressure and Temperature
	Zhang, Jie 1,2; Lu, Tiecheng 1,2,3; Chang, Xianghui 1,2; Jiang, Shengli 1,2; Wei, Nian 1,2; Qi, Jianqi 1,2
通讯作者	Lu, Tiecheng(lutiecheng@scu.edu.cn)
	2010-08-01
发表期刊	NANOSCALE RESEARCH LETTERS
ISSN	1931-7573
卷号	5 期号:8 页码:1329-1332
摘要	We report here experimental results of yield strength and stress relaxation measurements of transparent MgAl2O4 nano-ceramics at high pressure and temperature. During compression at ambient temperature, the differential strain deduced from peak broadening increased significantly with pressure up to 2 GPa, with no clear indication of strain saturation. However, by then, warming the sample above 400A degrees C under 4 GPa, stress relaxation was obviously observed, and all subsequent plastic deformation cycles are characterized again by peak broadening. Our results reveal a remarkable reduction in yield strength as the sintering temperature increases from 400 to 900A degrees C. The low temperature for the onset of stress relaxation has attracted attention regarding the performance of transparent MgAl2O4 nano-ceramics as an engineering material.
关键词	Transparent MgAl2O4 nano-ceramics High pressure/temperature Differential strain Yield strength Stress relaxation
资助者	NSFC of P. R. China ; Fok Ying Tong Education Foundation ; Youth Foundation of Science and Technology of Sichuan Province
DOI	10.1007/s11671-010-9647-5
收录类别	SCI
语种	英语
资助项目	NSFC of P. R. China[50272040] ; NSFC of P. R. China[50742046] ; NSFC of P. R. China[50872083] ; Fok Ying Tong Education Foundation[91046] ; Youth Foundation of Science and Technology of Sichuan Province[03ZQ026-03]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000279567800015
出版者	SPRINGER
引用统计	被引频次：4[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/321006/102625
专题	中国科学院金属研究所
通讯作者	Lu, Tiecheng
作者单位	1.Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China 2.Sichuan Univ, Minist Educ, Key Lab Radiat Phys & Technol, Chengdu 610064, Peoples R China 3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jie,Lu, Tiecheng,Chang, Xianghui,et al. Yield Strength of Transparent MgAl2O4 Nano-Ceramic at High Pressure and Temperature[J]. NANOSCALE RESEARCH LETTERS,2010,5(8):1329-1332.
APA	Zhang, Jie,Lu, Tiecheng,Chang, Xianghui,Jiang, Shengli,Wei, Nian,&Qi, Jianqi.(2010).Yield Strength of Transparent MgAl2O4 Nano-Ceramic at High Pressure and Temperature.NANOSCALE RESEARCH LETTERS,5(8),1329-1332.
MLA	Zhang, Jie,et al."Yield Strength of Transparent MgAl2O4 Nano-Ceramic at High Pressure and Temperature".NANOSCALE RESEARCH LETTERS 5.8(2010):1329-1332.