JPH03150264A - Piezoelectric ceramic and production thereof - Google Patents

Piezoelectric ceramic and production thereof

Info

Publication number
JPH03150264A
JPH03150264A JP1289520A JP28952089A JPH03150264A JP H03150264 A JPH03150264 A JP H03150264A JP 1289520 A JP1289520 A JP 1289520A JP 28952089 A JP28952089 A JP 28952089A JP H03150264 A JPH03150264 A JP H03150264A
Authority
JP
Japan
Prior art keywords
piezoelectric ceramics
sic
pulverized
raw material
added
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.)
Pending
Application number
JP1289520A
Other languages
Japanese (ja)
Inventor
Tomokazu Yamaguchi
Rui Namiuchi
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 JP1289520A priority Critical patent/JPH03150264A/en
Publication of JPH03150264A publication Critical patent/JPH03150264A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain piezoelectric ceramics having small crystal grain size in suppressed grain growth in burning by adding a specific amount of Mn to raw material powder of piezoelectric ceramics of Pb-Sn-Nb-Ti-Zr-O system, calcining the mixture and adding a prescribed amount of SiC thereto when pulverized.
CONSTITUTION: Raw material powder is prepared so as to afford piezoelectric ceramics having a composition expressed by the formula (x+y+z=1; x=0.01-0.2; y=0.01-0.75; z=0.05-0.875). Mn of 0.03-0.5wt.%, expressed in terms of MnO2 is added and mixed with the raw material powder and the mixture is calcined and then 0.01-0.5wt.% SiC is added thereto when pulverized. Then the pulverized mixed powder is formed at high pressure and burned at high temperature to provide the piezoelectric ceramics. Thereby the added SiC is effectively left until time when burned and grain growth in burning is suppressed. Consequently, reliability of product obtained by application of the piezoelectric ceramics can be improved.
COPYRIGHT: (C)1991,JPO&Japio
JP1289520A 1989-11-07 1989-11-07 Piezoelectric ceramic and production thereof Pending JPH03150264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1289520A JPH03150264A (en) 1989-11-07 1989-11-07 Piezoelectric ceramic and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1289520A JPH03150264A (en) 1989-11-07 1989-11-07 Piezoelectric ceramic and production thereof

Publications (1)

Publication Number Publication Date
JPH03150264A true JPH03150264A (en) 1991-06-26

Family

ID=17744322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1289520A Pending JPH03150264A (en) 1989-11-07 1989-11-07 Piezoelectric ceramic and production thereof

Country Status (1)

Country Link
JP (1) JPH03150264A (en)

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