JPS56120181A - Method of manufacturing piezoelectric porcelain - Google Patents

Method of manufacturing piezoelectric porcelain

Info

Publication number
JPS56120181A
JPS56120181A JP2355480A JP2355480A JPS56120181A JP S56120181 A JPS56120181 A JP S56120181A JP 2355480 A JP2355480 A JP 2355480A JP 2355480 A JP2355480 A JP 2355480A JP S56120181 A JPS56120181 A JP S56120181A
Authority
JP
Japan
Prior art keywords
pbo
porcelain
raw materials
pbf2
powders
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
JP2355480A
Other languages
Japanese (ja)
Inventor
Sadayuki Takahashi
Kazuaki Uchiumi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2355480A priority Critical patent/JPS56120181A/en
Publication of JPS56120181A publication Critical patent/JPS56120181A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/85—Piezoelectric or electrostrictive active materials
    • H10N30/853—Ceramic compositions
    • H10N30/8548—Lead based oxides
    • H10N30/8554—Lead zirconium titanate based
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/09—Forming piezoelectric or electrostrictive materials
    • H10N30/093—Forming inorganic materials
    • H10N30/097—Forming inorganic materials by sintering

Abstract

PURPOSE:To obtain a stoichiometry porcelain by adding less than 10wt% of mixtures of PbO and PbF2 as a lowering agent of sintering temperature after calcination of raw porcelain materials of Zircon. lead titanate group, thereby restraining the vaporization of Pb. CONSTITUTION:After weighing and mixing powders of PbO, ZrO2 and TiO2 as component raw materials so as to be Pb(Zr0.52Ti0.48)O3, said raw materials are calcined at 800 deg.C for 2hr. Then, powders of PbO and PbF2 having a ratio of 54:46 are added and mixed to said component raw materials by 0.2-10wt% thereof, and is subjected to a press formation. The forming body can be sintered at low temperature of 800 deg.C (less than fusing point of PbO) approximately for 4hr. Both surfaces of a disc plate thus obtained are polished and an Au-electrode is vapor deposited thereon. Finally, when the polarization treatment is performed applying a given D.C. electric field, a piezoelectric porcelain having a large electromechanical latching constant with respect to the vibration in the diameter direction is obtained.
JP2355480A 1980-02-27 1980-02-27 Method of manufacturing piezoelectric porcelain Pending JPS56120181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2355480A JPS56120181A (en) 1980-02-27 1980-02-27 Method of manufacturing piezoelectric porcelain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2355480A JPS56120181A (en) 1980-02-27 1980-02-27 Method of manufacturing piezoelectric porcelain

Publications (1)

Publication Number Publication Date
JPS56120181A true JPS56120181A (en) 1981-09-21

Family

ID=12113710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2355480A Pending JPS56120181A (en) 1980-02-27 1980-02-27 Method of manufacturing piezoelectric porcelain

Country Status (1)

Country Link
JP (1) JPS56120181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016672A (en) * 1998-01-31 2000-01-25 Samsung Electronics Co., Ltd. Washing machine having a water guide for forming vertical and horizontal currents of wash water

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228699A (en) * 1975-08-29 1977-03-03 Mitsubishi Chem Ind Ltd Production method of high density, high dielectri ceramic
JPS533698A (en) * 1976-06-30 1978-01-13 Mitsubishi Chem Ind Method of manufacturing temporarily burned powder of ferroodielectric ceramics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228699A (en) * 1975-08-29 1977-03-03 Mitsubishi Chem Ind Ltd Production method of high density, high dielectri ceramic
JPS533698A (en) * 1976-06-30 1978-01-13 Mitsubishi Chem Ind Method of manufacturing temporarily burned powder of ferroodielectric ceramics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6016672A (en) * 1998-01-31 2000-01-25 Samsung Electronics Co., Ltd. Washing machine having a water guide for forming vertical and horizontal currents of wash water

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