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	Phase transition and dielectric properties of nanograin BaTiO3 ceramic under high pressure
	Zhu, Jinlong ; Jin, Changqing ; Cao, Wenwu ; Wang, Xiaohui
	2010-05-10 ; 2010-05-10
关键词	BARIUM-TITANATE CERAMICS SIZE TEMPERATURE DEPENDENCE Physics, Applied
中文摘要	Temperature dependence of the dielectric constant of nanograin BaTiO3 ceramic has been investigated under hydrostatic pressure sigma up to 5 GPa. We found that the paraelectric-ferroelectric phase transition temperature T-C decreases with sigma at a rate of dT(C)/d sigma=-40.0(+/- 1.1) K/GPa for coarse-grain ceramic and -34.3(+/- 1.4) K/GPa for ceramic with 60 nm grains. The variation of intergranular stresses with reducing grain size is considered as the main factor causing the decrease of T-C and the change of dT(C)/d sigma. (C) 2008 American Institute of Physics.
语种	英语 ; 英语
出版者	AMER INST PHYSICS ; MELVILLE ; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/20695]
专题	清华大学
推荐引用方式 GB/T 7714	Zhu, Jinlong,Jin, Changqing,Cao, Wenwu,et al. Phase transition and dielectric properties of nanograin BaTiO3 ceramic under high pressure[J],2010, 2010.
APA	Zhu, Jinlong,Jin, Changqing,Cao, Wenwu,&Wang, Xiaohui.(2010).Phase transition and dielectric properties of nanograin BaTiO3 ceramic under high pressure..
MLA	Zhu, Jinlong,et al."Phase transition and dielectric properties of nanograin BaTiO3 ceramic under high pressure".(2010).

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