Reversible phase transition and structure memory effect of metastable phase in electron-irradiated poly(vinylidene-fluoride-trifluoroethyline) copolymers

被引：9

作者：

Li, WP ^{[1
]}

Tang, YW ^{[1
]}

Guo, SS ^{[1
]}

Wang, DH ^{[1
]}

Yang, G ^{[1
]}

Wang, RH ^{[1
]}

Zhao, XZ ^{[1
]}

机构：

[1] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 13期

关键词：

D O I：

10.1063/1.1563047

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the results of x-ray diffraction studies on phase transition behavior of irradiated poly(vinylidene-fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer. It is found that the transformations between the polar ferroelectric phase, the metastable paraelectric phase, and normal paraelectric phase induced by thermal and electric field are reversible. The reversible phase transition of the metastable paraelectric phase is very important to explain the appearance of giant strain in the irradiated P(VDF-TrFE) copolymer. The macroscopic strain caused by these reversible transitions was estimated. (C) 2003 American Institute of Physics.

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页码：2136 / 2138

页数：3

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