JPS54142597A - Piezo-electric porcelain composite - Google Patents

Piezo-electric porcelain composite

Info

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
Application number
JP4980478A
Other languages
Japanese (ja)
Other versions
JPS6211518B2 (en
Inventor
Yukio Ito
Shigeru Sadamura
Kazuyuki Nagatsuma
Hiroyuki Takeuchi
Kunio Yamashita
Sakichi Ashida
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4980478A priority Critical patent/JPS54142597A/en
Publication of JPS54142597A publication Critical patent/JPS54142597A/en
Publication of JPS6211518B2 publication Critical patent/JPS6211518B2/ja
Granted legal-status Critical Current

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
JP4980478A 1978-04-28 1978-04-28 Piezo-electric porcelain composite Granted JPS54142597A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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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