New high temperature morphotropic phase boundary piezoelectric ceramics

被引：0
|
作者：
Shrout, TR [1 ]
Eitel, R [1 ]
Randall, CA [1 ]
Alberta, E [1 ]
Rehrig, PW [1 ]
机构：
[1] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA
来源：
ISAF 2002: PROCEEDINGS OF THE 13TH IEEE INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS | 2002年
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D O I：
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
New morphotropic phase boundary (MPB) piezoelectrics with ferroelectric phase transitions (T-c) exceeding that of PbZrO3-PbTiO3 (PZT) were investigated. Based on a perovskite tolerance factor - T-c relationship, new high T,, MPB systems were projected in Bi(Me)O-3-PbTiO3 systems, where Me is a relatively large B(+3_)Site cation. For the (1-x)BiScO3-(x)PbTiO3 solid solution, a MPB, was found at x-0.64 separating the rhombohedral and tetragonal phases, with correspondingly enhanced dielectric and piezoelectric properties. A transition temperature T-c of similar to 450degreesC was determined with higher T(c)s projected with lower tolerance factor systems.
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页码：277 / 280
页数：4
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