发明名称 |
Piezoelectric ceramic composition and piezoelectric ceramic device using the same |
摘要 |
The present invention provides a piezoelectric ceramic composition having the formula: {[Pb(1-1.5x) (0~0.2)Lax][Ti(1-y-z)MnyCUz]O3} which meets the requirements: 0.02<x<0.14, 0.01<=y<0.04, and 0.002<=z<=0.008. The piezoelectric ceramic composition of the present invention can be stably sintered under normal atmosphere. That is, there is no need for an oxygen partial pressure to be 80% or more. Furthermore, the composition exhibits excellent piezoelectric property and thermal stability. Accordingly, the piezoelectric ceramic composition of the present invention has excellent piezoelectric property at a thickness longitudinal third harmonic frequency capable of producing a high frequency of 15 MHz or more, and can be used as a material of a piezoelectric ceramic device with a small electrode area
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申请公布号 |
US2003125190(A1) |
申请公布日期 |
2003.07.03 |
申请号 |
US20020206983 |
申请日期 |
2002.07.30 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD |
发明人 |
SEO DONG HWAN;HEON HUR KANG;KUK HONG JONG;KWON SANG KOO |
分类号 |
C04B35/46;C04B35/472;H01L41/187;(IPC1-7):C04B35/46 |
主分类号 |
C04B35/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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