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GB726462A - A method of producing a favoured direction of magnetisation in permanent magnets made from oxides of metals - Google Patents

A method of producing a favoured direction of magnetisation in permanent magnets made from oxides of metals

Info

Publication number
GB726462A
GB726462A GB1292753A GB1292753A GB726462A GB 726462 A GB726462 A GB 726462A GB 1292753 A GB1292753 A GB 1292753A GB 1292753 A GB1292753 A GB 1292753A GB 726462 A GB726462 A GB 726462A
Authority
GB
United Kingdom
Prior art keywords
oxides
per cent
magnetisation
metals
producing
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
GB1292753A
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.)
Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
Original Assignee
Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
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 Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie filed Critical Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
Publication of GB726462A publication Critical patent/GB726462A/en
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
    • C04B35/2683—Other ferrites containing alkaline earth metals or lead
    • 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
    • H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0311—Compounds
    • H01F1/0313—Oxidic compounds
    • H01F1/0315—Ferrites

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

726,462. Magnetic compositions. ART. - GES. FUR UNTERNEHMUNGEN DER EISEN - UND STAHLINDUSTRIE. May 8, 1953 [May 10, 1952], No. 12927/53. Class 38 (2). A permanent magnet having a favoured direction of magnetization with a relatively high value of (BH)max. is made by sintering a mixture of oxides to a coarse-grained powder, pulverizing to a fine powder and compressing, a magnetic field being applied while the mould is being filled with the powder or during the compression. The final magnet contains 5-60 per cent mol. barium ferrite, the starting materials preferably comprising 10-20 per cent, BaO and 80-90 per cent Fe 2 O 3 , measured by weight.
GB1292753A 1952-05-10 1953-05-08 A method of producing a favoured direction of magnetisation in permanent magnets made from oxides of metals Expired GB726462A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA15768A DE1079527B (en) 1952-05-10 1952-05-10 Method for achieving a preferred magnetic direction in permanent magnets made of oxidic materials

Publications (1)

Publication Number Publication Date
GB726462A true GB726462A (en) 1955-03-16

Family

ID=6923489

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1292753A Expired GB726462A (en) 1952-05-10 1953-05-08 A method of producing a favoured direction of magnetisation in permanent magnets made from oxides of metals

Country Status (4)

Country Link
CH (1) CH314781A (en)
DE (1) DE1079527B (en)
FR (1) FR1076644A (en)
GB (1) GB726462A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047429A (en) * 1959-03-27 1962-07-31 Rca Corp Magnetic recording medium comprising coatings of ferrite particles of the molar composite amno.bzno.cfe2o3
US4426484A (en) 1980-10-21 1984-01-17 Sumitomo Durez Company, Ltd. Method for accelerating cure of resole type phenolic resins

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047429A (en) * 1959-03-27 1962-07-31 Rca Corp Magnetic recording medium comprising coatings of ferrite particles of the molar composite amno.bzno.cfe2o3
US4426484A (en) 1980-10-21 1984-01-17 Sumitomo Durez Company, Ltd. Method for accelerating cure of resole type phenolic resins

Also Published As

Publication number Publication date
FR1076644A (en) 1954-10-28
DE1079527B (en) 1960-04-07
CH314781A (en) 1956-06-30

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