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	Effective properties of spherically anisotropic piezoelectric composites
	Gu, G. Q.; Wei, En-Bo; Poon, Y. M.; Shin, F. G.
刊名	PHYSICAL REVIEW B
	2007-08-01
卷号	76期号:6页码:64203
关键词	Nonlinear Composites Effective Conductivity Universal Relations Explicit Formulas Pzt Ceramics Micromechanics Coefficients Inclusion Fields
ISSN号	1098-0121
DOI	10.1103/PhysRevB.76.064203
文献子类	Article
英文摘要	Piezoelectric composites consisting of spherically anisotropic piezoelectric inclusions (i.e., piezoceramic material) in an infinite nonpiezoelectric matrix under a uniform electric field are theoretically investigated. Analytical solutions for the elastic displacements and the electric potentials are derived exactly. Taking account of the coupling effects of elasticity, permittivity, and piezoelectricity, formulas are derived for the effective dielectric and piezoelectric responses in the dilute limit. A piezoelectric response mechanism is revealed, in which the effective piezoelectric response vanishes irrespective of how much spherically anisotropic piezoelectric inclusions are inside. Moreover, the effective coupled responses of the piezoelectric composites show that the effective dielectric responses decrease (increase) as the inclusion elastic (piezoelectric) constants increase.; Piezoelectric composites consisting of spherically anisotropic piezoelectric inclusions (i.e., piezoceramic material) in an infinite nonpiezoelectric matrix under a uniform electric field are theoretically investigated. Analytical solutions for the elastic displacements and the electric potentials are derived exactly. Taking account of the coupling effects of elasticity, permittivity, and piezoelectricity, formulas are derived for the effective dielectric and piezoelectric responses in the dilute limit. A piezoelectric response mechanism is revealed, in which the effective piezoelectric response vanishes irrespective of how much spherically anisotropic piezoelectric inclusions are inside. Moreover, the effective coupled responses of the piezoelectric composites show that the effective dielectric responses decrease (increase) as the inclusion elastic (piezoelectric) constants increase.
URL标识	查看原文
语种	英语
WOS记录号	WOS:000249155200041
公开日期	2010-12-30
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/6233]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.E China Normal Univ, Sch Informat Sci & Technol, Shanghai 200062, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China 4.Hong Kong Polytech Univ, Mat Res Ctr, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Gu, G. Q.,Wei, En-Bo,Poon, Y. M.,et al. Effective properties of spherically anisotropic piezoelectric composites[J]. PHYSICAL REVIEW B,2007,76(6):64203.
APA	Gu, G. Q.,Wei, En-Bo,Poon, Y. M.,&Shin, F. G..(2007).Effective properties of spherically anisotropic piezoelectric composites.PHYSICAL REVIEW B,76(6),64203.
MLA	Gu, G. Q.,et al."Effective properties of spherically anisotropic piezoelectric composites".PHYSICAL REVIEW B 76.6(2007):64203.

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