Enhancement of electrical properties in the ternary PMN–PT–PZ through compositional variation, crystallographic texture, and quenching,Journal of the American Ceramic Society

当前位置： X-MOL 学术 › J. Am. Ceram. Soc. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Enhancement of electrical properties in the ternary PMN–PT–PZ through compositional variation, crystallographic texture, and quenching
Journal of the American Ceramic Society ( IF 3.5 ) Pub Date : 2019-12-04 , DOI: 10.1111/jace.16919
Sinan Dursun ₁ , Ebru Mensur‐Alkoy ₁ , Mustafa Unsal Unver ₁ , Sedat Alkoy _{1,

2}

Affiliation

Ternary compositions of Pb(Mg_1/3Nb_2/3)O₃–PbZrO₃–PbTiO₃ (PMN–PZT) piezoelectric ceramic have been investigated with an aim to optimize the electrical properties for piezoelectric applications. Quenching from temperatures above the Curie point was proved to enhance the properties up to two folds in the 0.40PMN–0.25PZ–0.35PT composition. This enhancement is believed to have arisen as a result of the freezing of defect dipoles in their random distribution, and thus prevention of their domain pinning effect. Texturing the optimum composition using BaTiO₃ template particles through templated grain growth process and quenching the textured ceramic led to further enhancement with piezoelectric charge coefficient increasing from 190 to 750 pC/N, relative permittivity increasing from 860 to 1815 and remanent polarization increasing from 16 to 30 μC/cm².

中文翻译：

通过成分变化，晶体织构和淬火来增强三元PMN–PT–PZ中的电性能

研究了Pb（Mg _1/3 Nb _2/3）O ₃ -PbZrO ₃ -PbTiO ₃（PMN-PZT）压电陶瓷的三元组成，旨在优化压电应用的电性能。事实证明，在0.40PMN–0.25PZ–0.35PT成分中，从居里点以上的温度淬火可将性能提高两倍。据信这种增强是由于缺陷偶极子的随机分布冻结而导致的，因此防止了它们的域钉扎效应。使用BaTiO ₃纹理化最佳组成模板颗粒通过模板化的晶粒生长过程和纹理陶瓷的淬火导致其进一步增强，压电电荷系数从190 pC / N增加到750 pC / N，相对介电常数从860增加到1815，剩余极化率从16μC/ cm ^2增加。

更新日期：2019-12-04

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南