Formation of Morphotropic Phase Boundary in (Na0.5K0.5)NbO3–BaZrO3–(Bi0.5Li0.5)TiO3 Lead-Free Piezoelectric Ceramics
Formation of Morphotropic Phase Boundary in (Na0.5K0.5)NbO3–BaZrO3–(Bi0.5Li0.5)TiO3 Lead-Free Piezoelectric Ceramics
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DOI：
10.7567/jjap.52.07hb02
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发表时间：
2013-06
影响因子：
1.5
通讯作者：
Junta Zushi;Takuma Ariizumi;S. Kojima;Ruiping Wang;H. Bando
中科院分区：
文献类型：
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作者：
Junta Zushi;Takuma Ariizumi;S. Kojima;Ruiping Wang;H. Bando
为了开发具有四方-三方准同质相界(MPB)的无铅压电陶瓷，用传统的固相反应法合成了0.90(Na0.5K0.5)NbO_3-xBaZrO_3-(0.10-x)(Bi0.5Li0.5)TiO_3陶瓷。从X射线衍射图和介电测量中总结出了相图。结果表明，0.90(Na0.5K0.5)NbO_3-xBaZrO_3-(0.10-x)(Bi0.5Li_(0.5))TiO_3陶瓷的MPB在x=0.07~0.08之间。在MPB附近，观察到介电和压电性能都得到了提高。
For the development of lead-free piezoelectric ceramics, which have a tetragonal–rhombohedral morphotropic phase boundary (MPB), 0.90(Na0.5K0.5)NbO3–xBaZrO3–(0.10 - x)(Bi0.5Li0.5)TiO3 ceramics have been synthesized by the conventional solid state reaction method. A phase diagram was summarized from the X-ray diffraction pattern and the dielectric measurements. It is found that 0.90(Na0.5K0.5)NbO3–xBaZrO3–(0.10 - x)(Bi0.5Li0.5)TiO3 ceramics have an MPB between x = 0.07 and 0.08. In the vicinity of the MPB, it was observed that the dielectric and piezoelectric properties were enhanced.