Detection of morphotropic phase boundary of (Bi1/2Na1/2)TiO3–Ba(Al1/2Sb1/2)O3 solid-solution ceramics
Detection of morphotropic phase boundary of (Bi1/2Na1/2)TiO3–Ba(Al1/2Sb1/2)O3 solid-solution ceramics
复制标题
DOI：
10.1063/1.3194146
复制
发表时间：
2009-08
影响因子：
4
通讯作者：
Y. Hiruma;H. Nagata;T. Takenaka
中科院分区：
文献类型：
--
作者：
Y. Hiruma;H. Nagata;T. Takenaka
通过传统的陶瓷制造工艺制造固溶体系统（1-x）（Bi 1/2Na 1/2）TiO 3-xBa（Al 1/2Sb 1/2）O3（BNT-BAS 100 x）。BNT-BAS 100 x的菱面体相和假立方相之间的准同型相界（MPB）被澄清为大约x=0.045，并且在该组成下获得532 pm/V的最高归一化应变d33*。该研究还表明，随着端元的公差因子t的增加，基于BNT的固溶体的MPB组成向富含BNT的组成转变，并且MPB组成的t总是约为0.983。这表明MPB位置可以从端元的t值预测。
A solid-solution system, (1−x)(Bi1/2Na1/2)TiO3–xBa(Al1/2Sb1/2)O3 (BNT-BAS100x), was fabricated by a conventional ceramic fabrication process. The morphotropic phase boundary (MPB) between rhombohedral and pseudocubic phases of BNT-BAS100x was clarified to be at approximately x=0.045, and the highest normalized strain d33* of 532 pm/V was obtained at this composition. This study also revealed that the MPB composition of a BNT-based solid solution shifts to a BNT-rich composition as the tolerance factor t of the end member increases, and t of the MPB composition is always approximately 0.983. This indicates that the MPB position can be predicted from t values of the end members.