Pb(Sc/sub 1/2/Nb/sub 1/2/)/sub 3/-Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/固溶体陶瓷的制备及压电性能

ISAF '96. Proceedings of the Tenth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1996-08-18 DOI:10.1109/ISAF.1996.602750

N. Ichinose, Y. Hosono, Y. Yamashita

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引用次数: 0

摘要

描述了Pb(Sc/sub 1/2/Nb/sub 1/2/)O/sub 3/Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/体系的电学性能和晶体结构。在该三元体系中，钙钛矿相存在于小于50 mol%的Pb(Sc/sub 1/2/Nb/sub 1/2/)O/sub 3/的组成范围内。在该体系中加入过量的PbO对获得钙钛矿结构是有效的。在二元(1-x)Pb(Sc/sub 1/2/Nb/sub 1/2/)O/sub 3/xPb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/体系中，居里温度在0.3> x>O范围内随x的增加而降低，在x=0.3以上居里温度升高。对于Tc的非线性变化，必须考虑钙钛矿结构中的位置偏好。

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Preparation and piezoelectric properties of Pb(Sc/sub 1/2/Nb/sub 1/2/)/sub 3/-Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/ solid solution ceramics

Electrical properties and crystal structures of the system Pb(Sc/sub 1/2/Nb/sub 1/2/)O/sub 3/Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/-PbTiO/sub 3/ are described. In this ternary system, the perovskite phase exists in the composition range of less 50 mol% of Pb(Sc/sub 1/2/Nb/sub 1/2/)O/sub 3/. Addition of excess PbO to this system is effective for obtaining the perovskite structure. In the binary (1-x)Pb(Sc/sub 1/2/Nb/sub 1/2/)O/sub 3/xPb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/ system, the Curie temperature is decreasing with increase of x in the range of 0.3> x>O and it is increasing above x=0.3. Site preference in the perovskite structure must be considered for this nonlinear change of Tc.

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ISAF '96. Proceedings of the Tenth IEEE International Symposium on Applications of Ferroelectrics

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