GB697219A - Ferromagnetic ceramic materials with hysteresis loops of rectangular shape - Google Patents

Ferromagnetic ceramic materials with hysteresis loops of rectangular shape

Info

Publication number
GB697219A
GB697219A GB7662/52A GB766252A GB697219A GB 697219 A GB697219 A GB 697219A GB 7662/52 A GB7662/52 A GB 7662/52A GB 766252 A GB766252 A GB 766252A GB 697219 A GB697219 A GB 697219A
Authority
GB
United Kingdom
Prior art keywords
per cent
oxide
rectangular shape
ceramic materials
hysteresis loops
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
GB7662/52A
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.)
Steatite Research Corp
Original Assignee
Steatite Research 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 Steatite Research Corp filed Critical Steatite Research Corp
Publication of GB697219A publication Critical patent/GB697219A/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
    • C04B35/42—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 chromites
    • 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
    • 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
    • C04B35/12—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 chromium oxide
    • 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
    • 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
    • C04B35/44—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 aluminates

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)

Abstract

697,219. Magnetic compositions. STEATITE RESEARCH CORPORATION. March 25, 1952 [Oct. 30, 1951], No. 7662/52. Drawings to Specifications. Class 38 (ii). A magnetic ferrite material suitable for use in computer circuits in that it has a substantially rectangular hysteresis loop, the ratio of remanence to saturation flux density being not less than 0.8, is made from 10-30 per cent of MgO, 5-40 per cent of MnO 2 , 50-70 per cent of Fe 2 O a , and up to 5 per cent each of MgF 2 and of the oxide of another heavy metal such as Zn, Nc, and Cu, and up to 4 per cent of a fluxing oxide such as silica, alumina, titania, or calcium oxide the percentages being by weight. The selected weights of the above materials are ground and mixed, a small amount of binder such as methyl cellulose and water may be added, and after being shaped by pressing or extruding the composition is fired in air at 2200-2400‹ F. Specification 671,788 is referred to.
GB7662/52A 1951-10-30 1952-03-25 Ferromagnetic ceramic materials with hysteresis loops of rectangular shape Expired GB697219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US766252XA 1951-10-30 1951-10-30

Publications (1)

Publication Number Publication Date
GB697219A true GB697219A (en) 1953-09-16

Family

ID=32735279

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7662/52A Expired GB697219A (en) 1951-10-30 1952-03-25 Ferromagnetic ceramic materials with hysteresis loops of rectangular shape

Country Status (6)

Country Link
CH (1) CH308111A (en)
DE (1) DE976406C (en)
FR (1) FR1053464A (en)
GB (1) GB697219A (en)
IT (1) IT492518A (en)
NL (1) NL100081C (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842500A (en) * 1954-10-18 1958-07-08 Ibm Method of making ferrite structures
US2860105A (en) * 1953-12-21 1958-11-11 Philips Corp Method of manufacturing ferromagnetic cores
US2882236A (en) * 1954-01-12 1959-04-14 Philips Corp Method of manufacturing magnet cores having a substantially rectangular outline of hysteresis loop
US2903429A (en) * 1954-07-13 1959-09-08 Centre Nat Rech Scient Modified ferrites
US2905641A (en) * 1953-12-22 1959-09-22 Philips Corp Method of manufacturing a magnet core having an approximately rectangular hysteresis loop
US2916456A (en) * 1954-01-28 1959-12-08 Philips Corp Magnet cores having a substantially rectangular hysteresis loop
US2925389A (en) * 1954-12-20 1960-02-16 Philips Corp Ferromagnetic cores and method
US2927898A (en) * 1959-03-30 1960-03-08 Licentia Gmbh Permanent magnet material
US2950251A (en) * 1955-09-19 1960-08-23 Rca Corp Magnetic materials having rectangular hysteresis characteristics
US2962445A (en) * 1955-07-01 1960-11-29 Lignes Telegraph Telephon Rectangular hysteresis loop ferrites
US2962345A (en) * 1957-11-29 1960-11-29 Du Pont Fluorine-containing ferromagnetic material
US2980617A (en) * 1956-03-13 1961-04-18 Indiana General Corp Ferrite compositions and method of making same
US2981688A (en) * 1960-05-27 1961-04-25 Steatite Res Corp Ferrites for microwave applications
US2981903A (en) * 1954-02-26 1961-04-25 Bell Telephone Labor Inc Gyromagnetic wave transmission devices
US2982732A (en) * 1957-12-30 1961-05-02 Ibm Ferrite composition containing titanium and nickel
US2992990A (en) * 1956-01-05 1961-07-18 Richard G Parker Soft magnetic material
US3007875A (en) * 1959-06-23 1961-11-07 Steatite Res Corp Square loop ferrites
US3023165A (en) * 1956-08-17 1962-02-27 Bell Telephone Labor Inc Magnesium ferrite containing aluminum and method of making same
US3030306A (en) * 1954-01-27 1962-04-17 Philips Corp Method of manufacturing a magnet core having an approximately-rectangular hysteresis loop
US3042618A (en) * 1959-06-09 1962-07-03 Ibm Preparation of a bistable ferrite circuit element
US3059194A (en) * 1958-12-29 1962-10-16 Bell Telephone Labor Inc Microwave ferrite devices
US3068176A (en) * 1958-03-31 1962-12-11 Du Pont Ferromagnetic chromium oxides containing fluorine and their preparation
US3072576A (en) * 1958-05-27 1963-01-08 Aladdin Ind Inc Ferrites having rectangular hysteresis loops and method for manufacture of same
US3093453A (en) * 1959-04-15 1963-06-11 Weizmann Inst Of Science Ferrite material containing fluorine
US3113109A (en) * 1959-10-07 1963-12-03 Du Pont Ferromagnetic material produced from ferric oxide and barium halide or strontium halide, and process for making same
DE1272799B (en) * 1963-02-04 1968-07-11 Ibm Ferrite bodies for storage and switching elements and processes for their production

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT527607A (en) * 1952-02-07
FR1121088A (en) * 1955-02-03 1956-07-20 Lignes Telegraph Telephon Ferromagnetic materials with rectangular hysteresis cycle
DE1177538B (en) * 1958-06-12 1964-09-03 Itt Method of manufacturing dielectric material
DE1646997B1 (en) * 1965-08-10 1972-06-29 Siemens Ag PROCESS FOR MANUFACTURING A FERROMAGNETIC SWITCH CORE FROM FERRITE WITH A RECTANGULAR HYSTERESIS LOOP
DE1671003B2 (en) * 1965-09-30 1972-03-30 Siemens AG, 1000 Berlin u. 8000 München FERROMAGNETIC MANGANE MAGNESIUM ZINC FERITE BODY WITH RECTANGULAR CYSTERESIS LOOP FOR MEMORY AND SWITCHING ELEMENTS AND PROCESS FOR THEIR PRODUCTION
DE1771987B1 (en) * 1968-08-12 1972-03-09 Siemens Ag FERROMAGNETIC MANGANE MAGNESIUM ZINC FERRITE WITH RIGHT ANGULAR HYSTERESIS LOOP FOR MEMORY AND SWITCH ELEMENTS AND PROCESS FOR ITS PRODUCTION

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565111A (en) * 1949-05-26 1951-08-21 Steatite Res Corp Ceramic magnetic material with a small temperature coefficient

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860105A (en) * 1953-12-21 1958-11-11 Philips Corp Method of manufacturing ferromagnetic cores
US2905641A (en) * 1953-12-22 1959-09-22 Philips Corp Method of manufacturing a magnet core having an approximately rectangular hysteresis loop
US2882236A (en) * 1954-01-12 1959-04-14 Philips Corp Method of manufacturing magnet cores having a substantially rectangular outline of hysteresis loop
US3030306A (en) * 1954-01-27 1962-04-17 Philips Corp Method of manufacturing a magnet core having an approximately-rectangular hysteresis loop
US2916456A (en) * 1954-01-28 1959-12-08 Philips Corp Magnet cores having a substantially rectangular hysteresis loop
US2981903A (en) * 1954-02-26 1961-04-25 Bell Telephone Labor Inc Gyromagnetic wave transmission devices
US2903429A (en) * 1954-07-13 1959-09-08 Centre Nat Rech Scient Modified ferrites
US2842500A (en) * 1954-10-18 1958-07-08 Ibm Method of making ferrite structures
US2925389A (en) * 1954-12-20 1960-02-16 Philips Corp Ferromagnetic cores and method
US2962445A (en) * 1955-07-01 1960-11-29 Lignes Telegraph Telephon Rectangular hysteresis loop ferrites
US2950251A (en) * 1955-09-19 1960-08-23 Rca Corp Magnetic materials having rectangular hysteresis characteristics
US2992990A (en) * 1956-01-05 1961-07-18 Richard G Parker Soft magnetic material
US2980617A (en) * 1956-03-13 1961-04-18 Indiana General Corp Ferrite compositions and method of making same
US3023165A (en) * 1956-08-17 1962-02-27 Bell Telephone Labor Inc Magnesium ferrite containing aluminum and method of making same
US2962345A (en) * 1957-11-29 1960-11-29 Du Pont Fluorine-containing ferromagnetic material
US2982732A (en) * 1957-12-30 1961-05-02 Ibm Ferrite composition containing titanium and nickel
US3068176A (en) * 1958-03-31 1962-12-11 Du Pont Ferromagnetic chromium oxides containing fluorine and their preparation
US3072576A (en) * 1958-05-27 1963-01-08 Aladdin Ind Inc Ferrites having rectangular hysteresis loops and method for manufacture of same
US3059194A (en) * 1958-12-29 1962-10-16 Bell Telephone Labor Inc Microwave ferrite devices
US2927898A (en) * 1959-03-30 1960-03-08 Licentia Gmbh Permanent magnet material
US3093453A (en) * 1959-04-15 1963-06-11 Weizmann Inst Of Science Ferrite material containing fluorine
US3042618A (en) * 1959-06-09 1962-07-03 Ibm Preparation of a bistable ferrite circuit element
US3007875A (en) * 1959-06-23 1961-11-07 Steatite Res Corp Square loop ferrites
US3113109A (en) * 1959-10-07 1963-12-03 Du Pont Ferromagnetic material produced from ferric oxide and barium halide or strontium halide, and process for making same
US2981688A (en) * 1960-05-27 1961-04-25 Steatite Res Corp Ferrites for microwave applications
DE1272799B (en) * 1963-02-04 1968-07-11 Ibm Ferrite bodies for storage and switching elements and processes for their production

Also Published As

Publication number Publication date
IT492518A (en)
FR1053464A (en) 1954-02-02
DE976406C (en) 1963-08-29
CH308111A (en) 1955-06-30
NL100081C (en) 1962-01-15

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