FR2297497B1 - - Google Patents

Info

Publication number
FR2297497B1
FR2297497B1 FR7600401A FR7600401A FR2297497B1 FR 2297497 B1 FR2297497 B1 FR 2297497B1 FR 7600401 A FR7600401 A FR 7600401A FR 7600401 A FR7600401 A FR 7600401A FR 2297497 B1 FR2297497 B1 FR 2297497B1
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
FR7600401A
Other languages
French (fr)
Other versions
FR2297497A1 (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 FR2297497A1 publication Critical patent/FR2297497A1/fr
Application granted granted Critical
Publication of FR2297497B1 publication Critical patent/FR2297497B1/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
    • H01G7/028—Electrets, i.e. having a permanently-polarised dielectric having a heterogeneous dielectric
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • 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
    • 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
    • H10N30/853—Ceramic compositions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Hard Magnetic Materials (AREA)
  • Laminated Bodies (AREA)
FR7600401A 1975-01-10 1976-01-09 Procede permettant de preparer un materiau convenant a la conversion de parametres et produit realise a partir d'un tel materiau Granted FR2297497A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7500289A NL7500289A (nl) 1975-01-10 1975-01-10 Werkwijze voor de bereiding van een materiaal geschikt voor het omzetten van grootheden en uit een dergelijk materiaal vormstuk.

Publications (2)

Publication Number Publication Date
FR2297497A1 FR2297497A1 (fr) 1976-08-06
FR2297497B1 true FR2297497B1 (ja) 1979-01-19

Family

ID=19822967

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7600401A Granted FR2297497A1 (fr) 1975-01-10 1976-01-09 Procede permettant de preparer un materiau convenant a la conversion de parametres et produit realise a partir d'un tel materiau

Country Status (10)

Country Link
JP (1) JPS5198686A (ja)
AT (1) AT347138B (ja)
AU (1) AU1009576A (ja)
BE (1) BE837449A (ja)
DE (1) DE2600285A1 (ja)
FR (1) FR2297497A1 (ja)
GB (1) GB1520831A (ja)
IT (1) IT1055745B (ja)
NL (1) NL7500289A (ja)
SE (1) SE409067B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10120865A1 (de) * 2001-04-27 2002-11-21 Bosch Gmbh Robert Kompositwerkstoff, Verfahren zu dessen Herstellung und dessen Verwendung
DE102008007875A1 (de) * 2008-02-06 2009-11-12 Universität des Saarlandes Piezoelemente auf Grundlage Bariumoxid-basierter Mischoxide
CN114394852B (zh) * 2022-01-06 2022-10-28 长安大学 一种晶粒尺寸呈梯度分布陶瓷材料的制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4838313A (ja) * 1971-09-18 1973-06-06
JPS49125896A (ja) * 1973-04-06 1974-12-02

Also Published As

Publication number Publication date
NL7500289A (nl) 1976-07-13
IT1055745B (it) 1982-01-11
ATA9976A (de) 1978-04-15
AU1009576A (en) 1977-07-14
JPS5198686A (ja) 1976-08-31
GB1520831A (en) 1978-08-09
DE2600285A1 (de) 1976-07-15
BE837449A (fr) 1976-07-09
SE7600056L (sv) 1976-07-12
AT347138B (de) 1978-12-11
FR2297497A1 (fr) 1976-08-06
SE409067B (sv) 1979-07-23

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Legal Events

Date Code Title Description
ST Notification of lapse