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Related mechanism of transparency in MgAl2O4 nano-ceramics prepared by sintering under high pressure and low temperature
Zhang, Jie1,2; Lu, Tiecheng1,2,3; Chang, Xianghui1,2; Wei, Nian1,2; Xu, Wen4
Corresponding AuthorZhang, Jie(zhjie126@126.com)
2009-03-07
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN0022-3727
Volume42Issue:5Pages:5
AbstractWe fabricate transparent MgAl2O4 nano-ceramics, which are composed of 40 nm grains, by sintering under high pressure and low temperatures. Analysis of the grain size, differential strains, yield strength and porosity obtained from transmission electron microscopy and x-ray diffraction indicates that the pores at the grain boundary triple junctions can retard grain boundary migration and thus prevent grain growth. It is found that the relatively high density for MgAl2O4 nano-ceramics produced at low-temperature and high pressure is attributed mainly to the large energy in the grain exteriors. The decrease in the transparency with increasing temperature (> 700 degrees C) is therefore a result of the light scattering at large pores. On the basis of these results, we propose a mechanism of transparency in MgAl2O4 nano-ceramics.
Funding OrganizationNSFC of the People's Republic of China ; Fok Ying Tong Education Foundation ; Youth Foundation of Science and Technology of Sichuan Province
DOI10.1088/0022-3727/42/5/052002
Indexed BySCI
Language英语
Funding ProjectNSFC of the People's Republic of China[50272040] ; NSFC of the People's Republic of China[50742046] ; NSFC of the People's Republic of China[50872083] ; Fok Ying Tong Education Foundation[91046] ; Youth Foundation of Science and Technology of Sichuan Province[03ZQ026-03]
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000263565200002
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/97234
Collection中国科学院金属研究所
Corresponding AuthorZhang, Jie
Affiliation1.Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China
2.Sichuan Univ, Key Lab Radiat Phys & Technol, Minist Educ, Chengdu 610064, Peoples R China
3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
4.Australian Natl Univ, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia
Recommended Citation
GB/T 7714
Zhang, Jie,Lu, Tiecheng,Chang, Xianghui,et al. Related mechanism of transparency in MgAl2O4 nano-ceramics prepared by sintering under high pressure and low temperature[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2009,42(5):5.
APA Zhang, Jie,Lu, Tiecheng,Chang, Xianghui,Wei, Nian,&Xu, Wen.(2009).Related mechanism of transparency in MgAl2O4 nano-ceramics prepared by sintering under high pressure and low temperature.JOURNAL OF PHYSICS D-APPLIED PHYSICS,42(5),5.
MLA Zhang, Jie,et al."Related mechanism of transparency in MgAl2O4 nano-ceramics prepared by sintering under high pressure and low temperature".JOURNAL OF PHYSICS D-APPLIED PHYSICS 42.5(2009):5.
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