GB528025A - Improvements in and relating to the manufacture of ferromagnetic material - Google Patents

Improvements in and relating to the manufacture of ferromagnetic material

Info

Publication number
GB528025A
GB528025A GB12533/39A GB1253339A GB528025A GB 528025 A GB528025 A GB 528025A GB 12533/39 A GB12533/39 A GB 12533/39A GB 1253339 A GB1253339 A GB 1253339A GB 528025 A GB528025 A GB 528025A
Authority
GB
United Kingdom
Prior art keywords
iron
april
manufacture
per cent
ferromagnetic material
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
GB12533/39A
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.)
Steatit Magnesia AG
Original Assignee
Steatit Magnesia AG
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 Steatit Magnesia AG filed Critical Steatit Magnesia AG
Publication of GB528025A publication Critical patent/GB528025A/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)
  • Compounds Of Iron (AREA)

Abstract

528,025. Iron oxides. STEATIT-MAGNESIA AKT.-GES. April 26, 1939, No. 12533. Convention date, April 27, 1938. [Class 1 (iii)] [Also in Group XXXV] A process for the manufacture of ferromagnetic material for dust cores consists in combining oxygen, which may be free or in chemical combination with other gases, completely with iron at a temperature of between 900‹C. and 1300‹C. The iron which is given a large surface area by cutting into strips, sheets, or wires, is heated to the required temperature in a gas containing oxygen at low partial pressure, preferably H 2 O and CO 2 leading to the formation of oxides, having between 70 per cent. and 75 per cent. iron content. In order to make the product crystalline, it is allowed to remain from 3-12 hours at a high temperature in a protective gas, preferably the reaction gas. The finished product is very brittle and can be ground down to particles having a diameter of between 40Á and 150Á.
GB12533/39A 1938-04-27 1939-04-26 Improvements in and relating to the manufacture of ferromagnetic material Expired GB528025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE528025X 1938-04-27

Publications (1)

Publication Number Publication Date
GB528025A true GB528025A (en) 1940-10-21

Family

ID=6553527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12533/39A Expired GB528025A (en) 1938-04-27 1939-04-26 Improvements in and relating to the manufacture of ferromagnetic material

Country Status (1)

Country Link
GB (1) GB528025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1084188B (en) * 1957-04-09 1960-06-23 Atomic Energy Commission Process for the production of a dense uranium oxide body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1084188B (en) * 1957-04-09 1960-06-23 Atomic Energy Commission Process for the production of a dense uranium oxide body

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