GB1520831A - Method of manufacturing a material suitable for converting an electric field into a magnetic field and vice versa - Google Patents

Method of manufacturing a material suitable for converting an electric field into a magnetic field and vice versa

Info

Publication number
GB1520831A
GB1520831A GB486/76A GB48676A GB1520831A GB 1520831 A GB1520831 A GB 1520831A GB 486/76 A GB486/76 A GB 486/76A GB 48676 A GB48676 A GB 48676A GB 1520831 A GB1520831 A GB 1520831A
Authority
GB
United Kingdom
Prior art keywords
mixture
heating
phase
converting
vice versa
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
GB486/76A
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 GB1520831A publication Critical patent/GB1520831A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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

Abstract

1520831 Mixed piezoelectric-piezomagnetic material; barium titanate PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 Jan 1976 [10 Jan 1975] 00486/76 Headings C1J and C1A A material consisting of a mixture comprising a piezoelectric phase and a piezomagnetic phase and capable of converting an electric field into a magnetic field and vice versa is manufactured by preparing a starting mixture of materials which form a sintered mixture of the phases on heating, heating the starting mixture at a given temperature so as to form a sintered product, and continuing heating until a chemical equilibrium between the phases has been established at the given temperature. After the chemical equilibrium has been established the sintered product may be heated in a chemically active (e.g. oxidizing or reducing) atmosphere. The examples describe the production of a two phase mixture from CoCO 3 , Fe 2 O 3 , TiO 2 and BaCO 3 (Example I) and from BaTiO 3 and Ni 0À97 Co 0À03 M 0À10 Fe 1À90 O 4 (Example II). The BaTiO 3 of Example II is prepared by grinding BaCO 3 and TiO 2 in alcohol in a ball mill, drying and then heating for 16 hours at 1000‹ C.
GB486/76A 1975-01-10 1976-01-07 Method of manufacturing a material suitable for converting an electric field into a magnetic field and vice versa Expired GB1520831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7500289A NL7500289A (en) 1975-01-10 1975-01-10 PROCESS FOR THE PREPARATION OF A MATERIAL SUITABLE FOR CONVERSION OF UNITS AND FROM SUCH MATERIAL FORM.

Publications (1)

Publication Number Publication Date
GB1520831A true GB1520831A (en) 1978-08-09

Family

ID=19822967

Family Applications (1)

Application Number Title Priority Date Filing Date
GB486/76A Expired GB1520831A (en) 1975-01-10 1976-01-07 Method of manufacturing a material suitable for converting an electric field into a magnetic field and vice versa

Country Status (10)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007875A1 (en) * 2008-02-06 2009-11-12 Universität des Saarlandes Piezoelement useful as an actuator and sensor, comprises a piezoelectric material comprising mixed oxides of elements of barium with cobalt and/or aluminum
CN114394852A (en) * 2022-01-06 2022-04-26 长安大学 Preparation method of ceramic material with grain size in gradient distribution

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10120865A1 (en) * 2001-04-27 2002-11-21 Bosch Gmbh Robert Composite material, process for its production and its use

Family Cites Families (2)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007875A1 (en) * 2008-02-06 2009-11-12 Universität des Saarlandes Piezoelement useful as an actuator and sensor, comprises a piezoelectric material comprising mixed oxides of elements of barium with cobalt and/or aluminum
CN114394852A (en) * 2022-01-06 2022-04-26 长安大学 Preparation method of ceramic material with grain size in gradient distribution
CN114394852B (en) * 2022-01-06 2022-10-28 长安大学 Preparation method of ceramic material with grain size in gradient distribution

Also Published As

Publication number Publication date
BE837449A (en) 1976-07-09
DE2600285A1 (en) 1976-07-15
FR2297497B1 (en) 1979-01-19
ATA9976A (en) 1978-04-15
AU1009576A (en) 1977-07-14
SE7600056L (en) 1976-07-12
FR2297497A1 (en) 1976-08-06
JPS5198686A (en) 1976-08-31
SE409067B (en) 1979-07-23
NL7500289A (en) 1976-07-13
IT1055745B (en) 1982-01-11
AT347138B (en) 1978-12-11

Similar Documents

Publication Publication Date Title
CN107986782B (en) Doped modified lead zirconate titanate piezoelectric ceramic and preparation method thereof
CN110015893A (en) A kind of composite mixed bismuth ferrite-barium titanate binary system Lead-free ferroelectric ceramics material, preparation method and applications
CN106145941A (en) A kind of rich zirconium lead zirconate titanate bismuth ferrite multiferroic ceramic material
GB1520831A (en) Method of manufacturing a material suitable for converting an electric field into a magnetic field and vice versa
CN109485416B (en) Barium titanate calcium-based lead-free piezoelectric ceramic and preparation method thereof
US2741561A (en) das gupta
GB839860A (en) Improvements in or relating to ferromagnetic ferrite materials
CN108069712A (en) One kind has temperature-stable Electrostrictive strain ceramic material and preparation method thereof
GB854831A (en) Improvements in or relating to ferrite magnetic core memory elements
US3085980A (en) Ferromagnetic material
SU692810A1 (en) Ceramic material
CN108675789A (en) A kind of new iron-based ceramic capacitor material and preparation method thereof
US3062667A (en) Dielectric materials and processes of manufacturing same
JPS5210599A (en) Ceramic piezo-electric material
US3062668A (en) Dielectric materials and processes of manufacturing same
US3208948A (en) Vanadium-containing ferrimagnetic material
SU381642A1 (en) CERAMIC MATERIAL
SU454590A1 (en) Dielectric material
SU455805A1 (en) A method of manufacturing manganese-magnesium ferrite products
GB931744A (en) A ceramic dielectric material
US3110674A (en) Piezoelectric-ferromagnetic material
JPH0258230B2 (en)
JPS63299209A (en) Manufacture of oxide superconducting coil
GB1440559A (en) Manufacture of cdramic powders
JPS60141675A (en) Manufacture of light permeable high dielectric ceramic

Legal Events

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