Related mechanism of transparency in MgAl2O4 nano-ceramics prepared by sintering under high pressure and low temperature

doi:10.1088/0022-3727/42/5/052002

IMR OpenIR

	Related mechanism of transparency in MgAl2O4 nano-ceramics prepared by sintering under high pressure and low temperature
	Zhang, Jie 1,2; Lu, Tiecheng 1,2,3; Chang, Xianghui 1,2; Wei, Nian 1,2; Xu, Wen 4
通讯作者	Zhang, Jie(zhjie126@126.com)
	2009-03-07
发表期刊	JOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN	0022-3727
卷号	42 期号:5 页码:5
摘要	We 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.
资助者	NSFC of the People's Republic of China ; Fok Ying Tong Education Foundation ; Youth Foundation of Science and Technology of Sichuan Province
DOI	10.1088/0022-3727/42/5/052002
收录类别	SCI
语种	英语
资助项目	NSFC 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研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000263565200002
出版者	IOP PUBLISHING LTD
引用统计	被引频次：38[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/321006/97234
专题	中国科学院金属研究所
通讯作者	Zhang, Jie
作者单位	1.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
推荐引用方式 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.