ES226467A1 - MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE MATERIAL FERROMAGNÉTICO CERáMICO - Google Patents

MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE MATERIAL FERROMAGNÉTICO CERáMICO

Info

Publication number
ES226467A1
ES226467A1 ES0226467A ES226467A ES226467A1 ES 226467 A1 ES226467 A1 ES 226467A1 ES 0226467 A ES0226467 A ES 0226467A ES 226467 A ES226467 A ES 226467A ES 226467 A1 ES226467 A1 ES 226467A1
Authority
ES
Spain
Prior art keywords
metals
oxides
magnesium
manganese
oxide
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
ES0226467A
Other languages
English (en)
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.)
TDK Micronas GmbH
International Telephone and Telegraph Corp
Original Assignee
Deutsche ITT Industries GmbH
International Telephone and Telegraph Corp
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 Deutsche ITT Industries GmbH, International Telephone and Telegraph Corp filed Critical Deutsche ITT Industries GmbH
Publication of ES226467A1 publication Critical patent/ES226467A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2625—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing magnesium

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

Mejoras introducidas en la fabricación de un material ferromagnético cerámico que tiene una curva de histéresis sustancialmente rectangular caracterizadas porque se hace por compresión y fusión de una mezcla de óxidos de un metal o metales trivalentes y por lo menos un óxido de un metal bivalente incluyendo manganeso y opcionalmente también uno del grupo consistente en magnesio, zinc y cadmio, consistiendo los porcentajes moleculares en dicha mezcla, de entre 23 y 52 de óxidos de metales trivalentes, de los cuales por lo menos tres cuartos es óxido férrico, siendo la suma de los de manganeso (basada en el número de átomos de manganeso presentes), y magnesio, si lo hay, entre 33 y 77 y el óxido de magnesio, si lo hay, no excediendo de 20, teniendo el material final un coeficiente negativo de magnetoestricción, un tamaño de grano entre 10 y 100 micras y una composición molecular en la que los porcentajes de óxidos de los metales en estado trivalente y los de los metales en estado bivalente son sustancialmente iguales.
ES0226467A 1955-02-03 1956-02-02 MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE MATERIAL FERROMAGNÉTICO CERáMICO Expired ES226467A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR684899A FR1121088A (fr) 1955-02-03 1955-02-03 Matériaux ferromagnétiques à cycle d'hystérésis rectangulaire

Publications (1)

Publication Number Publication Date
ES226467A1 true ES226467A1 (es) 1956-04-01

Family

ID=32731795

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0226467A Expired ES226467A1 (es) 1955-02-03 1956-02-02 MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE MATERIAL FERROMAGNÉTICO CERáMICO

Country Status (6)

Country Link
BE (1) BE543302A (es)
CH (1) CH343545A (es)
DE (1) DE1239606B (es)
ES (1) ES226467A1 (es)
FR (2) FR1121088A (es)
GB (2) GB820854A (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031406A (en) * 1958-01-07 1962-04-24 Rca Corp Magnetic cores
ES246988A1 (es) * 1958-02-13 1959-05-16 Itt MÉTODO DE FABRICACION DE UNA MATERIAL CERáMICO FERROMAGNÉTICO
NL257266A (es) * 1959-11-10
NL256989A (es) * 1959-11-10
US3039962A (en) * 1961-01-30 1962-06-19 Rca Corp Ferromagnetic ferrite and process of preparing same
US3226327A (en) * 1962-07-31 1965-12-28 Bell Telephone Labor Inc Ferrite compositions and method of manufacture
CN108640670B (zh) * 2018-04-26 2021-03-02 湖北华磁电子科技有限公司 高Bs值、低功率损耗软磁铁氧体材料及磁芯的制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE456575A (es) * 1943-07-01
US2640813A (en) * 1948-06-26 1953-06-02 Aladdin Ind Inc Reaction product of a mixed ferrite and lead titanate
IT492518A (es) * 1951-10-30
GB737284A (en) * 1952-02-15 1955-09-21 Steatite Res Corp Rectangular loop ferro nagnetic materials
FR1051851A (fr) * 1952-02-28 1954-01-19 Centre Nat Rech Scient Perfectionnements aux matériaux ferromagnétiques en ferrites mixtes de manganèse, de magnésium et de zinc et aux procédés de fabrication desdits matériaux
GB730703A (en) * 1952-07-31 1955-05-25 Centre Nat Rech Scient Magnetic materials and methods of manufacturing such materials

Also Published As

Publication number Publication date
FR1121088A (fr) 1956-07-20
GB820853A (en) 1959-09-30
FR67809E (fr) 1958-03-24
BE543302A (es) 1955-12-30
DE1239606B (de) 1967-04-27
CH343545A (fr) 1959-12-31
GB820854A (en) 1959-09-30

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