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Yield Strength of Transparent MgAl2O4 Nano-Ceramic at High Pressure and Temperature
Zhang, Jie1,2; Lu, Tiecheng1,2,3; Chang, Xianghui1,2; Jiang, Shengli1,2; Wei, Nian1,2; Qi, Jianqi1,2
Corresponding AuthorLu, Tiecheng(lutiecheng@scu.edu.cn)
2010-08-01
Source PublicationNANOSCALE RESEARCH LETTERS
ISSN1931-7573
Volume5Issue:8Pages:1329-1332
AbstractWe 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.
KeywordTransparent MgAl2O4 nano-ceramics High pressure/temperature Differential strain Yield strength Stress relaxation
Funding OrganizationNSFC of P. R. China ; Fok Ying Tong Education Foundation ; Youth Foundation of Science and Technology of Sichuan Province
DOI10.1007/s11671-010-9647-5
Indexed BySCI
Language英语
Funding ProjectNSFC 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 Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000279567800015
PublisherSPRINGER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/102625
Collection中国科学院金属研究所
Corresponding AuthorLu, Tiecheng
Affiliation1.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
Recommended Citation
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.
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