GB982756A - Process for sintering a ferrite body - Google Patents

Process for sintering a ferrite body

Info

Publication number
GB982756A
GB982756A GB4928763A GB4928763A GB982756A GB 982756 A GB982756 A GB 982756A GB 4928763 A GB4928763 A GB 4928763A GB 4928763 A GB4928763 A GB 4928763A GB 982756 A GB982756 A GB 982756A
Authority
GB
United Kingdom
Prior art keywords
sintering
ferrites
dec
minutes
air containing
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
GB4928763A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Priority claimed from US246340A external-priority patent/US3274110A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB982756A publication Critical patent/GB982756A/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

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

982,756. Magnetic compositions. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 13, 1963 [Dec. 21, 1962], No. 49287/63. Heading H1H. In the preparation of magnetic ferrite cores having square-loop characteristics the sintering and/or annealing step is carried out in a controlled atmosphere of air containing up to 3% water vapour. In an example a ferrite comprising 40% Fe 2 O 3 , 55% MnO and 5% CuO is prepared. The mixture is calcined between 600‹ C. and 1000‹ C. for 30 min. to 180 min., pulverized, presintered, reground, pressed into shape after a binder (polyvinyl alcohol) and lubricant (dibutyl phthalate) have been added, and sintered at a temperature between 1100‹ C. and 1500‹ C. for a period from 2 minutes to 4 hours. It is then annealed at a lower temperature (900‹ C.) for 10-15 minutes in air containing ¢%-3% water vapour. This airwater vapour atmosphere may also be used during the sintering step. Other ferrites specified are MnZn, NiZn, MgMn, Mn, Ni, Zn, Cu and Mg ferrites.
GB4928763A 1962-12-21 1963-12-13 Process for sintering a ferrite body Expired GB982756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US246340A US3274110A (en) 1962-12-21 1962-12-21 Ferrite process

Publications (1)

Publication Number Publication Date
GB982756A true GB982756A (en) 1965-02-10

Family

ID=22930255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4928763A Expired GB982756A (en) 1962-12-21 1963-12-13 Process for sintering a ferrite body

Country Status (2)

Country Link
DE (1) DE1696412B1 (en)
GB (1) GB982756A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7422835B2 (en) 2003-12-24 2008-09-09 Eastman Kodak Company Imaging element having improved durability
CN114477092A (en) * 2022-01-24 2022-05-13 南方科技大学 Preparation method and application of hydrogenated oxide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR943945A (en) * 1946-03-25 1949-03-22 Lagonda Ltd Improvements in fuel injection systems in internal combustion engines
FR933494A (en) * 1946-09-02 1948-04-22 Etat Francais Ministere De L A Method and device for superfinishing surfaces
US2535025A (en) * 1949-10-06 1950-12-26 Steatite Res Corp Process of treating ferrites
GB760035A (en) * 1953-01-21 1956-10-31 Steatite Res Corp Improvements in the manufacture of ferromagnetic spinels with square hysteresis loop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7422835B2 (en) 2003-12-24 2008-09-09 Eastman Kodak Company Imaging element having improved durability
CN114477092A (en) * 2022-01-24 2022-05-13 南方科技大学 Preparation method and application of hydrogenated oxide

Also Published As

Publication number Publication date
DE1696412B1 (en) 1970-06-11

Similar Documents

Publication Publication Date Title
GB1143448A (en) Improvements in or relating to manganese-zinc-ferrites
GB1010577A (en) Improvements in or relating to polycrystalline nickel-zinc ferrite bodies
GB982756A (en) Process for sintering a ferrite body
GB823971A (en) Improvements in or relating to ferromagnetic ferrite materials
GB833277A (en) Improvements in or relating to methods of manufacturing ferromagnetic ferrites
GB842005A (en) Improvements in or relating to ferromagnetic materials
GB833053A (en) Improvements in or relating to ferro-magnetic ferrite materials
GB1060598A (en) Ferromagnetic cores and processes for the preparation thereof
GB1220300A (en) Magnetic cores
GB994240A (en) Improvements in or relating to methods of manufacturing magnetic cores and magnetic cores manufactured by such methods
GB906059A (en) Magnetic cores
US3065181A (en) Inductor materials
GB1227459A (en)
GB959643A (en)
GB989389A (en) Ferromagnetic ferrite core and method of manufacture thereof
GB1056315A (en) Process for the manufacture of manganese-zinc ferrites
GB1004748A (en) Improvements in methods of manufacturing sintered ferrite bodies
GB756374A (en) A method for the manufacture of ferrite cores
US3375196A (en) Method for introducing calcium oxide into manganese-zinc ferrite magnetic materials
GB1523910A (en) Method of manufacturing ferrite cores
GB740894A (en) Improvements in or relating to ferromagnetic material or ferromagnetic bodies and methods of manufacturing such material
GB883291A (en) Improvements in or relating to ferromagnetic ferrite cores
US3533949A (en) Heat treating method for obtaining a ferrite with a high muq product
US2751354A (en) Method of manufacturing a magnetic ferrite core
GB1401358A (en) Production of manganese-zinc ferrite