| 发明名称 |
Piezoelectric ceramic - contg cobalt and tantalum for filters frequency controllers etc |
| 摘要 |
<p>Piezoelectric ceramics consisting of solid solns. from the ternary system Pb(Co1/3Ta2/3)O3 - PbTiO3 - PbZrO3; in partic. Pb(Co1/3Ta2/3)o.25TiO.43Zro.32O3 and Pb(Co1/3-Ta2/3)0.125Ti0.435Zr0.44P3 for which the coupling coefficient is 0.55 with high mechanical Q. Little loss of PbO occurs during sintering so that no special atmos. is required.</p> |
| 申请公布号 |
FR1604588(A) |
申请公布日期 |
1971.12.06 |
| 申请号 |
FRD1604588 |
申请日期 |
1968.11.13 |
| 申请人 |
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发明人 |
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| 分类号 |
C04B35/46;C04B35/48;C04B35/50;C04B35/51 |
主分类号 |
C04B35/46 |
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