JPS564291A - Composite piezoelectric film and manufacture thereof - Google Patents

Composite piezoelectric film and manufacture thereof

Info

Publication number
JPS564291A
JPS564291A JP7965879A JP7965879A JPS564291A JP S564291 A JPS564291 A JP S564291A JP 7965879 A JP7965879 A JP 7965879A JP 7965879 A JP7965879 A JP 7965879A JP S564291 A JPS564291 A JP S564291A
Authority
JP
Japan
Prior art keywords
powder
thickness direction
living body
density
piezoelectric film
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
JP7965879A
Other languages
Japanese (ja)
Other versions
JPS6239551B2 (en
Inventor
Tadashi Ido
Yoshinori Fujimori
Hiroki Honda
Yoshikazu Oda
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7965879A priority Critical patent/JPS564291A/en
Publication of JPS564291A publication Critical patent/JPS564291A/en
Publication of JPS6239551B2 publication Critical patent/JPS6239551B2/ja
Granted 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
    • H10N30/852—Composite materials, e.g. having 1-3 or 2-2 type connectivity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

PURPOSE:To provide a composite piezoelectric film which has easy workability to a thin film, large piezoelectric effect, a plenty of flexibility and less ageing change by continuously changing the inorganic ferrodielectric powder density in thickness direction. CONSTITUTION:Inorganic ferrodielectric powder 2 is continuously changed in density in thickness direction in a composite piezoelectric film 1 in dispersed state. The density changing degree of the powder 2 can be controlled suitably by selecting the grain size, specific weight of the powder 2, specific viscosity and centrifugal force of the high molecular material and the like. In this manner acoustic impedance is continuously varied with respect to the thickness direction. Accordingly, a high molecular material layer 3 is disposed at the living body side as a living body supersonic probe to form an excellent piezoelectric element for supersonic probe for living body. When the layer 3 is used as a protective layer, it can also be used as a keyboard piezoelectric element.
JP7965879A 1979-06-26 1979-06-26 Composite piezoelectric film and manufacture thereof Granted JPS564291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7965879A JPS564291A (en) 1979-06-26 1979-06-26 Composite piezoelectric film and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7965879A JPS564291A (en) 1979-06-26 1979-06-26 Composite piezoelectric film and manufacture thereof

Publications (2)

Publication Number Publication Date
JPS564291A true JPS564291A (en) 1981-01-17
JPS6239551B2 JPS6239551B2 (en) 1987-08-24

Family

ID=13696236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7965879A Granted JPS564291A (en) 1979-06-26 1979-06-26 Composite piezoelectric film and manufacture thereof

Country Status (1)

Country Link
JP (1) JPS564291A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56130985A (en) * 1980-03-18 1981-10-14 Nippon Telegr & Teleph Corp <Ntt> Manufacture of piezoelectric bimorph
US4729882A (en) * 1985-03-28 1988-03-08 Tokyo Metropolitan Environmental Service Corporation Process for cleaning mercury-containing gaseous emissions
WO2023277118A1 (en) * 2021-07-02 2023-01-05 国立大学法人東北大学 Composite material for power generation and method for producing composite material for power generation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56130985A (en) * 1980-03-18 1981-10-14 Nippon Telegr & Teleph Corp <Ntt> Manufacture of piezoelectric bimorph
US4729882A (en) * 1985-03-28 1988-03-08 Tokyo Metropolitan Environmental Service Corporation Process for cleaning mercury-containing gaseous emissions
WO2023277118A1 (en) * 2021-07-02 2023-01-05 国立大学法人東北大学 Composite material for power generation and method for producing composite material for power generation
JP2024053569A (en) * 2021-07-02 2024-04-16 国立大学法人東北大学 Composite material for power generation and method for producing the same

Also Published As

Publication number Publication date
JPS6239551B2 (en) 1987-08-24

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