Influence of porosity on nonlinear mechanical properties of unpoled porous Pb(Zr0.95Ti0.05)O-3 ceramics under uniaxial compression

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 无机功能材料与器件重点实验室 > 期刊论文

	Influence of porosity on nonlinear mechanical properties of unpoled porous Pb(Zr0.95Ti0.05)O-3 ceramics under uniaxial compression
	Jiang, ZhaoXiu 1; Wang, YongGang 1; Nie, HengChang 2; Liu, YuSheng 3
刊名	MECHANICS OF MATERIALS
	2017
卷号	104 页码:139-144
关键词	Porous PZT95/5 ceramics Mechanical properties Domain switching and phase transformation Uniaxial compression
英文摘要	A series of uniaxial compression experiments on unpoled porous lead zirconate titanate Pb(Zr0.95Ti0.05)O3 (PZT95/5) ceramics were performed to investigate the influence of porosity on the mechanical properties, domain switching and phase transformation via non-contact digital image correlation optical technique to measure the full-field strain. Four unpoled PZT95/5 ceramics were fabricated with a range of porosity levels via systematic additions of pore formers. The nonlinear compressive mechanical behaviors of unpoled PZT95/5 ceramics were measured and evaluated as a function of porosity. The nonlinear deformation mechanism of unpoled PZT95/5 ceramics was attributed to domain switching and ferroelectric (FE) to antiferroelectric (AFE) phase transformation processes, which was verified by analyzing the anomalous behavior between axial strain and radial strain. Normalized critical stresses for the onset of domain switching as well as the onset and exhaustion of phase transformation resulted in a very similar linear decrease with increasing porosity. We suggest that a critical macroscopic volumetric strain is needed for the onset of phase transformation that is nearly independent of porosity. (C) 2016 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary ; Mechanics
研究领域[WOS]	Materials Science ; Mechanics
关键词[WOS]	LEAD-ZIRCONATE-TITANATE ; FERROELECTRIC CERAMICS ; TRANSFORMATION
收录类别	SCI
语种	英语
WOS记录号	WOS:000390516600012
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/21918]
专题	上海硅酸盐研究所_无机功能材料与器件重点实验室_期刊论文
作者单位	1.Ningbo Univ, Minist Educ China, Key Lab Impact & Safety Engn, Ningbo 315211, Zhejiang, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 3.Inst Fluid Phys, Natl Key Lab Shock Wave & Detonat Phys, Mianyang 621900, Peoples R China
推荐引用方式 GB/T 7714	Jiang, ZhaoXiu,Wang, YongGang,Nie, HengChang,et al. Influence of porosity on nonlinear mechanical properties of unpoled porous Pb(Zr0.95Ti0.05)O-3 ceramics under uniaxial compression[J]. MECHANICS OF MATERIALS,2017,104:139-144.
APA	Jiang, ZhaoXiu,Wang, YongGang,Nie, HengChang,&Liu, YuSheng.(2017).Influence of porosity on nonlinear mechanical properties of unpoled porous Pb(Zr0.95Ti0.05)O-3 ceramics under uniaxial compression.MECHANICS OF MATERIALS,104,139-144.
MLA	Jiang, ZhaoXiu,et al."Influence of porosity on nonlinear mechanical properties of unpoled porous Pb(Zr0.95Ti0.05)O-3 ceramics under uniaxial compression".MECHANICS OF MATERIALS 104(2017):139-144.