Claims
- 1. A piezoelectric ceramic material comprising a ternary fundamental solid solution of 0.5 to 5.0 mol% of Pb(Y.sub.1/2 Nb.sub.1/2)O.sub.3, 40.0 to 50.0 mol% of PbTiO.sub.3, and 45.0 to 59.5 mol% of PbZrO.sub.3, in which part of the Pb in the solid solution is substituted with 10.0 to 15.0 mol% of Sr, Nb.sub.2 O.sub.5 being further contained in the solid solution in an amount of 0.1 to 2.0 wt% of the solid solution.
- 2. The piezoelectric ceramic material according to claim 1, comprising a ternary fundamental solid solution of 1.0 to 4.0 mol% of Pb(Y.sub.1/2 Nb.sub.1/2)O.sub.3, 41.0 to 44.0 mol% of PbTiO.sub.3, and 51.0 to 58.0 mol% of PbZrO.sub.3, in which part of the Pb in the solid solution is substituted with 10.0 to 15.0 mol% of Sr, Nb.sub.2 O.sub.5 being further contained in an amount of from 0.1 to 1.5 wt% of the solid solution.
- 3. The piezoelectric ceramic material according to claim 2, wherein the amount of Sr that is substituted for the Pb in the solid solution is in the range of from 10.0 to 12.5 mol% and Nb.sub.2 O.sub.5 is contained in an amount of from 0.1 to 1.0 wt% of the solid solution.
Priority Claims (1)
Number |
Date |
Country |
Kind |
58-231165 |
Dec 1983 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 834,513, field Feb. 28, 1986, which was abandoned upon the filing hereof; and which was a continuation of Ser. No. 678,162, filed Dec. 4, 1984, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
57-208183 |
Dec 1982 |
JPX |
Continuations (2)
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Number |
Date |
Country |
Parent |
834513 |
Feb 1986 |
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Parent |
678162 |
Dec 1984 |
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