Zero thermal expansion in PbTiO3-Based perovskites

被引：197

作者：

Chen, Jun ^{[1
]}

Xing, Xianran ^{[1
]}

Sun, Ce ^{[1
]}

Hu, Penghao ^{[1
]}

Yu, Ranbo ^{[1
]}

Wang, Xiaowei ^{[1
]}

Li, Lihong ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Phys Chem, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 04期

关键词：

D O I：

10.1021/ja7100278

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

PbTiO3-Bi(Zn1/2Ti1/2)O-3 and related solid solutions exhibit an unusually negative thermal expansion with considerably enhanced tetragonality and Curie temperature. A zero thermal expansion is found over a wide temperature range of room temperature to 500 degrees C. Direct experimental evidence is given for the fact that the negative thermal expansion of PbTiO3-based solid solutions is strongly correlated with the temperature dependence of the ferroelectricity, which is a new negative thermal expansion mechanism.

引用

页码：1144 / +

页数：3