JPS5570082A - Preparation of piezo-electric porcelain - Google Patents

Preparation of piezo-electric porcelain

Info

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
Application number
JP14370678A
Other languages
Japanese (ja)
Other versions
JPS624874B2 (en
Inventor
Ichiro Ueda
Masamitsu Nishida
Shunichiro Kawashima
Hiroshi Ouchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14370678A priority Critical patent/JPS5570082A/en
Publication of JPS5570082A publication Critical patent/JPS5570082A/en
Publication of JPS624874B2 publication Critical patent/JPS624874B2/ja
Granted legal-status Critical Current

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
JP14370678A 1978-11-20 1978-11-20 Preparation of piezo-electric porcelain Granted JPS5570082A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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