Piezoelectric property in morphotropic phase boundary Bi0.5(Na0.82K0.18)0.5TiO3 lead free thick film deposited by screen printing
Piezoelectric property in morphotropic phase boundary Bi0.5(Na0.82K0.18)0.5TiO3 lead free thick film deposited by screen printing
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DOI：
10.1063/1.2911744
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发表时间：
2008-04
影响因子：
4
通讯作者：
Haibo Zhang;Shenglin Jiang;Yike Zeng
中科院分区：
文献类型：
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作者：
Haibo Zhang;Shenglin Jiang;Yike Zeng
在铂电极氧化铝衬底上丝网印刷了Bi0.5(Na0.82K0.18)0.5TiO3厚膜。在1100℃烧结0.5h，得到的38μm厚薄膜的最大相对介电常数为810，10 kHz时的介电损耗为2.0%，剩余极化为28.3μC/cm~2，矫顽场为62KV/cm，纵向有效压电系数为109 PM/V。该无铅压电厚膜的性能可与相应的块体陶瓷相媲美。
Piezoelectric Bi0.5(Na0.82K0.18)0.5TiO3 thick films were screen printed on Pt electroded alumina substrates. The resulting 38μm thick films sintered at 1100°C for 0.5h have maximum relative permittivity of 810, dielectric loss of 2.0% (at 10kHz), remanent polarization of 28.3μC∕cm2, coercive field of 62kV∕cm, and longitudinal effective piezoelectric coefficient d33eff of 109pm∕V. The temperature dependence of the dielectric constant shows two clear peaks that were associated with phase transitions. The performance of this lead free piezoelectric thick film could be comparable to the corresponding bulk ceramics.