Nanosintering mechanism of MgAl2O4 transparent ceramics under high pressure

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	Nanosintering mechanism of MgAl2O4 transparent ceramics under high pressure
	Zou, YT ; He, DW ; Wei, XK ; Yu, RC ; Lu, TC ; Chang, XH ; Wang, SM ; Lei, L
刊名	MATERIALS CHEMISTRY AND PHYSICS
	2010
卷号	123 期号:2-3 页码:529
关键词	NANOCRYSTALLINE MATERIALS YIELD STRENGTH YAG CERAMICS SPINEL TEMPERATURE FABRICATION ALUMINA POWDER DIFFRACTION
ISSN号	0254-0584
通讯作者	He, DW (reprint author), Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China.
中文摘要	Double perovskite compounds (Sr2-xEux)FeMoO6 (0 <= x <= 0.3) were prepared by solid-state reaction at high temperature. Crystal structure, magnetic and transport properties of the compounds were investigated. The crystal structure of the compounds changes from an 14/m lattice to an Fm (3) over barm lattice around x=0.1. The unit-cell volume decreases with the doping level in both the 14/m lattice and the Fm (3) over barm lattice. The resistivity of the compounds shows a metal semiconductor transition, and the transition temperature TM-S increases with the doping level. However, Curie temperature (T-C) of the compounds exhibits a weak dependence on the doping level. The saturation magnetization (M-5) at 100 K varies almost linearly with the anti-site defect concentration and agrees well with the simple FIM model. In contrast to the Ce-, Pr-, Nd- and Sm-doped Sr2FeMoO6, the difference of M-S of (Sr2-xEu)FeMoO6 between 5 and 100 K indicates that the moment of Eu3+ is antiparellel to that of Fe3+ at low temperature. (C) 2010 Elsevier Inc. All rights reserved.
收录类别	SCI
资助信息	National Science Foundation of China [50572067, 50621061, 50742046, 50872083]; State Key Development Program for Basic Research of China [2005CB623602]
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/49692]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zou, YT,He, DW,Wei, XK,et al. Nanosintering mechanism of MgAl2O4 transparent ceramics under high pressure[J]. MATERIALS CHEMISTRY AND PHYSICS,2010,123(2-3):529.
APA	Zou, YT.,He, DW.,Wei, XK.,Yu, RC.,Lu, TC.,...&Lei, L.(2010).Nanosintering mechanism of MgAl2O4 transparent ceramics under high pressure.MATERIALS CHEMISTRY AND PHYSICS,123(2-3),529.
MLA	Zou, YT,et al."Nanosintering mechanism of MgAl2O4 transparent ceramics under high pressure".MATERIALS CHEMISTRY AND PHYSICS 123.2-3(2010):529.