JPS5570082A - Preparation of piezo-electric porcelain - Google Patents
Preparation of piezo-electric porcelainInfo
- Publication number
- JPS5570082A JPS5570082A JP14370678A JP14370678A JPS5570082A JP S5570082 A JPS5570082 A JP S5570082A JP 14370678 A JP14370678 A JP 14370678A JP 14370678 A JP14370678 A JP 14370678A JP S5570082 A JPS5570082 A JP S5570082A
- Authority
- JP
- Japan
- Prior art keywords
- heat treatment
- polarization
- piezo
- preparation
- porcelain
- 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
- Compositions Of Oxide Ceramics (AREA)
Abstract
PURPOSE: To decrease the change of a constant due to working and heat treatment after polarization, by thermally treating the porcelain at temperatures between burning temperature and 500°C, before polarization.
CONSTITUTION: A ferroelectric substance porcelain is thermally treated at temperatures, which are within a range that is between burning temperature and 500°C, and polarized. Thermal stability becomes better the more the temperature of heat treatment before polarization is raised and the more time is prolonged. The stability is approximately saturated by means of heat treatment before polarization at 700°C for not less than six hours.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14370678A JPS5570082A (en) | 1978-11-20 | 1978-11-20 | Preparation of piezo-electric porcelain |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14370678A JPS5570082A (en) | 1978-11-20 | 1978-11-20 | Preparation of piezo-electric porcelain |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5570082A true JPS5570082A (en) | 1980-05-27 |
JPS624874B2 JPS624874B2 (en) | 1987-02-02 |
Family
ID=15345071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14370678A Granted JPS5570082A (en) | 1978-11-20 | 1978-11-20 | Preparation of piezo-electric porcelain |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5570082A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006013304A (en) * | 2004-06-29 | 2006-01-12 | Murata Mfg Co Ltd | Manufacturing method of piezo-electric element |
-
1978
- 1978-11-20 JP JP14370678A patent/JPS5570082A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006013304A (en) * | 2004-06-29 | 2006-01-12 | Murata Mfg Co Ltd | Manufacturing method of piezo-electric element |
Also Published As
Publication number | Publication date |
---|---|
JPS624874B2 (en) | 1987-02-02 |
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