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JPS561584A - Composite piezoelectric film - Google Patents

Composite piezoelectric film

Info

Publication number
JPS561584A
JPS561584A JP7626679A JP7626679A JPS561584A JP S561584 A JPS561584 A JP S561584A JP 7626679 A JP7626679 A JP 7626679A JP 7626679 A JP7626679 A JP 7626679A JP S561584 A JPS561584 A JP S561584A
Authority
JP
Japan
Prior art keywords
particles
film
piezoelectric film
composite piezoelectric
high molecular
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
JP7626679A
Other languages
Japanese (ja)
Other versions
JPS639392B2 (en
Inventor
Yoshinori Fujimori
Yohachi Yamashita
Hirohiko Izumi
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 JP7626679A priority Critical patent/JPS561584A/en
Publication of JPS561584A publication Critical patent/JPS561584A/en
Publication of JPS639392B2 publication Critical patent/JPS639392B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00Piezoelectric or electrostrictive devices
    • H10N30/80Constructional details
    • H10N30/85Piezoelectric or electrostrictive active materials
    • H10N30/852Composite materials, e.g. having 1-3 or 2-2 type connectivity
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00Piezoelectric or electrostrictive devices
    • H10N30/01Manufacture or treatment
    • H10N30/09Forming piezoelectric or electrostrictive materials
    • H10N30/092Forming composite materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

PURPOSE:To increase the piezoelectric constant and coupling coefficient of a composite piezoelectric film by forming a composite piezoelectric film of inorganic ferrodielectric particles and high molecular material, forming the shape of particles in central-expanded cylindrical shaped, and forming the upper and the lower surfaces thereof for the front and the back surfaces of the film. CONSTITUTION:Resin solution becoming high molecular material matrix on a flat substrate is flowed and spreaded, inorganic ferrodielectric particles having spherical shape and uniform grain size are so dropped that the particles are not superimposed in thickness direction of the solution to form a composite resin solution. At this time the particles always reach the substrate due to their specifid gravity difference. Thereafter, the solution is dried to form a plurality of sheetlike member and to be isolated from the substrate. The front and the rear surfaces thereof are lapped to form the surfaces of the film with the upper and the lower surfaces of the particles 1a to bury the particles 1a in the high molecular material 1b. Then, an electrode 1c is arranged on the surface of the exposed particles 1a to form a composite piezoelectric film 1. In this manner preferable characteristics are provided with flexibility in the film.
JP7626679A 1979-06-19 1979-06-19 Composite piezoelectric film Granted JPS561584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7626679A JPS561584A (en) 1979-06-19 1979-06-19 Composite piezoelectric film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7626679A JPS561584A (en) 1979-06-19 1979-06-19 Composite piezoelectric film

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP61141277A Division JPS6211283A (en) 1986-06-19 1986-06-19 Complex piezoelectric film

Publications (2)

Publication Number Publication Date
JPS561584A true JPS561584A (en) 1981-01-09
JPS639392B2 JPS639392B2 (en) 1988-02-29

Family

ID=13600417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7626679A Granted JPS561584A (en) 1979-06-19 1979-06-19 Composite piezoelectric film

Country Status (1)

Country Link
JP (1) JPS561584A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013051252A (en) * 2011-08-30 2013-03-14 Nagoya Institute Of Technology Piezoelectric material, electronic component and method for manufacturing piezoelectric material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164645A (en) * 1961-10-11 1965-01-05 Prismo Safety Corp Method of making reflex reflective sheeting
JPS49129200A (en) * 1973-03-29 1974-12-11
JPS5388199A (en) * 1977-01-13 1978-08-03 Toshiba Corp Piezo-electric high polymer complex

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164645A (en) * 1961-10-11 1965-01-05 Prismo Safety Corp Method of making reflex reflective sheeting
JPS49129200A (en) * 1973-03-29 1974-12-11
JPS5388199A (en) * 1977-01-13 1978-08-03 Toshiba Corp Piezo-electric high polymer complex

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013051252A (en) * 2011-08-30 2013-03-14 Nagoya Institute Of Technology Piezoelectric material, electronic component and method for manufacturing piezoelectric material

Also Published As

Publication number Publication date
JPS639392B2 (en) 1988-02-29

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