DE69016469T2 - Verfahren zur Herstellung von magnetischem keramischem Material zur Mikrowellenanwendung. - Google Patents

Verfahren zur Herstellung von magnetischem keramischem Material zur Mikrowellenanwendung.

Info

Publication number
DE69016469T2
DE69016469T2 DE69016469T DE69016469T DE69016469T2 DE 69016469 T2 DE69016469 T2 DE 69016469T2 DE 69016469 T DE69016469 T DE 69016469T DE 69016469 T DE69016469 T DE 69016469T DE 69016469 T2 DE69016469 T2 DE 69016469T2
Authority
DE
Germany
Prior art keywords
production
ceramic material
magnetic ceramic
microwave application
microwave
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 - Fee Related
Application number
DE69016469T
Other languages
English (en)
Other versions
DE69016469D1 (de
Inventor
Nicola Sparvieri
Paolo Cattarin
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.)
MBDA Italia SpA
Original Assignee
Selenia Industrie Elettroniche Associate SpA
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 Selenia Industrie Elettroniche Associate SpA filed Critical Selenia Industrie Elettroniche Associate SpA
Application granted granted Critical
Publication of DE69016469D1 publication Critical patent/DE69016469D1/de
Publication of DE69016469T2 publication Critical patent/DE69016469T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/32—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process
    • C01B13/322—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process of elements or compounds in the solid state
    • C01B13/324—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process of elements or compounds in the solid state by solid combustion synthesis
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/18—Methods for preparing oxides or hydroxides in general by thermal decomposition of compounds, e.g. of salts or hydroxides
    • C01B13/185—Preparing mixtures of oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
DE69016469T 1989-03-01 1990-03-01 Verfahren zur Herstellung von magnetischem keramischem Material zur Mikrowellenanwendung. Expired - Fee Related DE69016469T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8947699A IT1230836B (it) 1989-03-01 1989-03-01 Processo per la fabbricazione di materiali magnetici ceramici per applicazione a microonde

Publications (2)

Publication Number Publication Date
DE69016469D1 DE69016469D1 (de) 1995-03-16
DE69016469T2 true DE69016469T2 (de) 1995-06-08

Family

ID=11261971

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69016469T Expired - Fee Related DE69016469T2 (de) 1989-03-01 1990-03-01 Verfahren zur Herstellung von magnetischem keramischem Material zur Mikrowellenanwendung.

Country Status (4)

Country Link
US (1) US5073359A (de)
EP (1) EP0385453B1 (de)
DE (1) DE69016469T2 (de)
IT (1) IT1230836B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1249817B (it) * 1991-07-23 1995-03-28 Sviluppo Materiali Spa Procedimento per la produzione di polveri per materiali ceramici superconduttori
KR100315296B1 (ko) * 1998-10-14 2001-11-26 이형도 초미세 세라믹산화물분말, 그 제조방법 및 이를 이용한 세라믹페이스트와 그 제조방법
US6319421B1 (en) 1998-10-14 2001-11-20 Samsung Electro-Mechanics Co., Ltd. Ceramic oxide powder, method for producing the ceramic oxide powder, ceramic paste produced using the ceramic oxide powder, and method for producing the ceramic paste

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2038681A5 (de) * 1969-03-21 1971-01-08 Raffinage Cie Francaise
US4097392A (en) * 1975-03-25 1978-06-27 Spang Industries, Inc. Coprecipitation methods and manufacture of soft ferrite materials and cores
US4486401A (en) * 1983-03-14 1984-12-04 Celanese Corporation Production of fine ferrimagnetic spinels
DE3435698A1 (de) * 1984-09-28 1986-04-03 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von feinteiligem isotropen ferritpulver mit spinellstruktur

Also Published As

Publication number Publication date
IT1230836B (it) 1991-11-07
IT8947699A0 (it) 1989-03-01
US5073359A (en) 1991-12-17
DE69016469D1 (de) 1995-03-16
EP0385453B1 (de) 1995-02-01
EP0385453A1 (de) 1990-09-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ALENIA MARCONI SYSTEMS S.P.A., ROM/ROMA, IT

8339 Ceased/non-payment of the annual fee
8370 Indication related to discontinuation of the patent is to be deleted
8339 Ceased/non-payment of the annual fee