JPS54142597A - Piezo-electric porcelain composite - Google Patents
Piezo-electric porcelain compositeInfo
- Publication number
- JPS54142597A JPS54142597A JP4980478A JP4980478A JPS54142597A JP S54142597 A JPS54142597 A JP S54142597A JP 4980478 A JP4980478 A JP 4980478A JP 4980478 A JP4980478 A JP 4980478A JP S54142597 A JPS54142597 A JP S54142597A
- Authority
- JP
- Japan
- Prior art keywords
- mol
- composite
- piezo
- electric porcelain
- pbo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Inorganic Insulating Materials (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
PURPOSE: To obtain a composite with a good temperature characteristic available for high frequency by adding a specified amount of one or more of Ce, Pr, Sm, Eu and Gd oxides and MnO2 to the main component, PbO and TiO2.
CONSTITUTION: The composite contains 39.9 to 49.3 mol % of PbO, 48.7 to 54.6 mol % of TiO2, 0.5 to 4.8 mol % of one or more of Ce, Pr, Sm, Eu and Gd oxides and 0.2 to 1.5 mol % of MnO2 and 0.3 to 4.0 mol % of In2O3. The composite is calcined at 850°C for two hours, fired at 1200 to 1260°C for five hours, and is polarized. By this way, a piezo-electric porcelain with a low dielectric constant and a good characteristic for a surface elastic wave element can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4980478A JPS54142597A (en) | 1978-04-28 | 1978-04-28 | Piezo-electric porcelain composite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4980478A JPS54142597A (en) | 1978-04-28 | 1978-04-28 | Piezo-electric porcelain composite |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54142597A true JPS54142597A (en) | 1979-11-06 |
JPS6211518B2 JPS6211518B2 (en) | 1987-03-12 |
Family
ID=12841320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4980478A Granted JPS54142597A (en) | 1978-04-28 | 1978-04-28 | Piezo-electric porcelain composite |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54142597A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5768091A (en) * | 1980-10-15 | 1982-04-26 | Hitachi Ltd | Piezoelectric porcelain composition and surface acoustic wave element utilizing it |
JPS5768919A (en) * | 1980-10-17 | 1982-04-27 | Hitachi Ltd | Piezoelectric oscillator |
US4458172A (en) * | 1982-08-06 | 1984-07-03 | Hitachi, Ltd. | Ultrasonic probe |
JPS60167599A (en) * | 1985-01-25 | 1985-08-30 | Hitachi Ltd | Ultrasonic probe |
JPH0591029U (en) * | 1992-05-08 | 1993-12-10 | 松下電器産業株式会社 | Piezoelectric oscillator |
-
1978
- 1978-04-28 JP JP4980478A patent/JPS54142597A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5768091A (en) * | 1980-10-15 | 1982-04-26 | Hitachi Ltd | Piezoelectric porcelain composition and surface acoustic wave element utilizing it |
JPH0151072B2 (en) * | 1980-10-15 | 1989-11-01 | Hitachi Ltd | |
JPS5768919A (en) * | 1980-10-17 | 1982-04-27 | Hitachi Ltd | Piezoelectric oscillator |
US4458172A (en) * | 1982-08-06 | 1984-07-03 | Hitachi, Ltd. | Ultrasonic probe |
JPS60167599A (en) * | 1985-01-25 | 1985-08-30 | Hitachi Ltd | Ultrasonic probe |
JPH0311111B2 (en) * | 1985-01-25 | 1991-02-15 | Hitachi Ltd | |
JPH0591029U (en) * | 1992-05-08 | 1993-12-10 | 松下電器産業株式会社 | Piezoelectric oscillator |
Also Published As
Publication number | Publication date |
---|---|
JPS6211518B2 (en) | 1987-03-12 |
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