FR2323236B1 - - Google Patents

Info

Publication number
FR2323236B1
FR2323236B1 FR7626487A FR7626487A FR2323236B1 FR 2323236 B1 FR2323236 B1 FR 2323236B1 FR 7626487 A FR7626487 A FR 7626487A FR 7626487 A FR7626487 A FR 7626487A FR 2323236 B1 FR2323236 B1 FR 2323236B1
Authority
FR
France
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
FR7626487A
Other languages
French (fr)
Other versions
FR2323236A1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2323236A1 publication Critical patent/FR2323236A1/fr
Application granted granted Critical
Publication of FR2323236B1 publication Critical patent/FR2323236B1/fr
Granted 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)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Insulating Materials (AREA)
FR7626487A 1975-09-02 1976-09-02 Corps fritte polarise et son procede de realisation Granted FR2323236A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7510305A NL7510305A (nl) 1975-09-02 1975-09-02 Werkwijze voor de vervaardiging van een gepolari- seerd sinterlichaam geheel of gedeeltelijk be- staande uit een stof met ferroelektrische eigen- schappen en gepolariseerde sinterlichamen.

Publications (2)

Publication Number Publication Date
FR2323236A1 FR2323236A1 (fr) 1977-04-01
FR2323236B1 true FR2323236B1 (ja) 1979-06-22

Family

ID=19824392

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7626487A Granted FR2323236A1 (fr) 1975-09-02 1976-09-02 Corps fritte polarise et son procede de realisation

Country Status (5)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946718C2 (de) 1999-09-29 2002-01-10 Siemens Ag Vorbehandlungsverfahren für einen elektro-mechanischen Wandler
ATE308119T1 (de) 2002-02-01 2005-11-15 Siemens Ag Verfahren zum vorbehandeln einer piezoelektrischen keramik und verfahren zum justieren eines einspritzventils

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 (ja) * 1967-10-23 1969-01-24
BE760015A (fr) * 1970-01-22 1971-05-17 Western Electric Co Polarisation ferroelectrique de matieres cristallines remplies,de structure analogue a celle des bronzes de tungstene
JPS509234A (ja) * 1973-05-30 1975-01-30

Also Published As

Publication number Publication date
JPS5229999A (en) 1977-03-07
FR2323236A1 (fr) 1977-04-01
DE2637951C2 (de) 1982-12-23
DE2637951A1 (de) 1977-03-10
NL7510305A (nl) 1977-03-04
GB1552964A (en) 1979-09-19

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Legal Events

Date Code Title Description
ST Notification of lapse