GB1552964A - Polarized sintered body having ferroelectric properties - Google Patents

Polarized sintered body having ferroelectric properties

Info

Publication number
GB1552964A
GB1552964A GB35731/76A GB3573176A GB1552964A GB 1552964 A GB1552964 A GB 1552964A GB 35731/76 A GB35731/76 A GB 35731/76A GB 3573176 A GB3573176 A GB 3573176A GB 1552964 A GB1552964 A GB 1552964A
Authority
GB
United Kingdom
Prior art keywords
sintered body
ferroelectric properties
polarized
polarized sintered
ferroelectric
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.)
Expired
Application number
GB35731/76A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1552964A publication Critical patent/GB1552964A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/025—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric
    • H01G7/026—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric with ceramic dielectric
    • 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
    • H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
    • H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Insulating Materials (AREA)
GB35731/76A 1975-09-02 1976-08-27 Polarized sintered body having ferroelectric properties Expired GB1552964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7510305A NL7510305A (en) 1975-09-02 1975-09-02 PROCESS FOR THE MANUFACTURE OF A POLARIZED SINTER BODY, WHOLLY OR PARTIALLY CONSISTING OF A FABRIC WITH FERROELECTRIC PROPERTIES AND POLARIZED SINTER BODIES.

Publications (1)

Publication Number Publication Date
GB1552964A true GB1552964A (en) 1979-09-19

Family

ID=19824392

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35731/76A Expired GB1552964A (en) 1975-09-02 1976-08-27 Polarized sintered body having ferroelectric properties

Country Status (5)

Country Link
JP (1) JPS5229999A (en)
DE (1) DE2637951C2 (en)
FR (1) FR2323236A1 (en)
GB (1) GB1552964A (en)
NL (1) NL7510305A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946718C2 (en) * 1999-09-29 2002-01-10 Siemens Ag Pretreatment process for an electro-mechanical converter
DE50301490D1 (en) 2002-02-01 2005-12-01 Siemens Ag METHOD FOR PRE-TREATING A PIEZOELECTRIC CERAMIC AND METHOD FOR ADJUSTING AN INJECTION VALVE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310720A (en) * 1964-01-03 1967-03-21 Bell Telephone Labor Inc Polarization process for ceramics
FR1554730A (en) * 1967-10-23 1969-01-24
BE760015A (en) * 1970-01-22 1971-05-17 Western Electric Co FERROELECTRIC POLARIZATION OF FILLED CRYSTALLINE MATERIALS, STRUCTURE ANALOGUE TO THAT OF TUNGSTEN BRONZES
JPS509234A (en) * 1973-05-30 1975-01-30

Also Published As

Publication number Publication date
NL7510305A (en) 1977-03-04
DE2637951A1 (en) 1977-03-10
DE2637951C2 (en) 1982-12-23
JPS5229999A (en) 1977-03-07
FR2323236A1 (en) 1977-04-01
FR2323236B1 (en) 1979-06-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee