发明名称 |
PIEZOELECTRIC MATERIAL |
摘要 |
A lead-free piezoelectric material that has stable, excellent piezoelectric constant and mechanical quality factor in a wide operating temperature range is provided. A piezoelectric material include a perovskite-type metal oxide represented by (Ba1-xCax)a(Ti1-yZry)O3 (where 1.00≦̸a≦̸1.01, 0.155≦̸x≦̸0.300, 0.041≦̸y≦̸0.069) as a main component, and manganese incorporated in the perovskite-type metal oxide. The manganese content relative to 100 parts by weight of the perovskite-type metal oxide is 0.12 parts by weight or more and 0.40 parts by weight or less on a metal basis. |
申请公布号 |
EP2729971(A1) |
申请公布日期 |
2014.05.14 |
申请号 |
EP20120741113 |
申请日期 |
2012.06.26 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HAYASHI, JUMPEI;FURUTA, TATSUO;SHIMIZU, YASUSHI;MATSUDA, TAKANORI;SAITO, HIROSHI;KUBOTA, MAKOTO |
分类号 |
H01L41/187;C04B35/468;C04B35/49 |
主分类号 |
H01L41/187 |
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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