| 发明名称 |
LEAD-FREE PIEZO-ELECTRIC PORCELAIN COMPOSITION, PIEZO-ELECTRIC ELEMENT USING THE SAME, AND METHOD FOR PRODUCING LEAD-FREE PIEZO-ELECTRIC PORCELAIN COMPOSITION |
| 摘要 |
A lead-free piezo-electric porcelain composition which contains a main phase having voids and which is formed of a first crystal phase composed of an alkali niobate/tantalate-based perovskite oxide having piezo-electric characteristics; and a sub-phase containing a second crystal phase composed of an A2B6O13-based compound (where the element A is a monovalent element and the element B is one or more divalent to hexavalent elements). The sub-phase fills voids present in the main phase. |
| 申请公布号 |
US2015295162(A1) |
申请公布日期 |
2015.10.15 |
| 申请号 |
US201514682631 |
申请日期 |
2015.04.09 |
| 申请人 |
NGK SPARK PLUG CO., LTD. |
发明人 |
YAMAZAKI Masato;MATSUOKA Takayuki;HONDA Yoshiteru;KITAMURA Kazuaki;KOZUKA Hisashi;KURAHASHI Toshiaki;OKIMURA Yasuyuki;YAMADA Hideto;OHBAYASHI Kazushige |
| 分类号 |
H01L41/187;H01L41/43 |
主分类号 |
H01L41/187 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lead-free piezo-electric porcelain composition comprising:
a main phase having voids and which is formed of a first crystal phase composed of an alkali niobate/tantalate-based perovskite oxide having piezo-electric characteristics; and a sub-phase containing a second crystal phase composed of an A2B6O13-based compound, where the element A is a monovalent element and the element B is one or more divalent to hexavalent elements, wherein the sub-phase fills the voids present in the main phase. |
| 地址 |
Nagoya-shi JP |
