GB782762A - Improvements in or relating to magnetic ferrite compositions - Google Patents

Improvements in or relating to magnetic ferrite compositions

Info

Publication number
GB782762A
GB782762A GB625855A GB625855A GB782762A GB 782762 A GB782762 A GB 782762A GB 625855 A GB625855 A GB 625855A GB 625855 A GB625855 A GB 625855A GB 782762 A GB782762 A GB 782762A
Authority
GB
United Kingdom
Prior art keywords
march
substituted
relating
per cent
oxides
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
GB625855A
Inventor
John Martin Herbert
Charles O'hara
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 to NL205922D priority Critical patent/NL205922A/xx
Priority to NL102383D priority patent/NL102383C/xx
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB625855A priority patent/GB782762A/en
Priority to FR1144795D priority patent/FR1144795A/en
Priority to US577176A priority patent/US2997443A/en
Publication of GB782762A publication Critical patent/GB782762A/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
    • C04B35/2666—Other ferrites containing nickel, copper or cobalt

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)

Abstract

782,762. Magnetic compositions. PLESSEY CO., Ltd. March 5, 1956 [March 3, 1955], No. 6258/55. Class 38 (2). A magnetic composition suitable for magnetostrictive transducers can be represented by the formula xAO; yB 2 O 3 where x and y are in the range 1-1.2, A is nickel of which up to 5 per cent may be substituted by Co, and B is Fe of which 5-50 per cent is substituted by Cr, the percentages being of atomic equivalents. Suitable proportions of powdered oxides are fired together for one hour at 1100‹ C., ground, mixed with a plastic binder such as butyl methacrylate in acetone, compressed and sintered in air at 1360‹ C. for 48 hours. Mechanical and electrical properties of materials made from oxides in differing proportions, and heated at different temperatures are tabulated.
GB625855A 1955-03-03 1955-03-03 Improvements in or relating to magnetic ferrite compositions Expired GB782762A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL205922D NL205922A (en) 1955-03-03
NL102383D NL102383C (en) 1955-03-03
GB625855A GB782762A (en) 1955-03-03 1955-03-03 Improvements in or relating to magnetic ferrite compositions
FR1144795D FR1144795A (en) 1955-03-03 1956-03-19 Ferrite usable in particular for the manufacture of magnetostriction transducers
US577176A US2997443A (en) 1955-03-03 1956-04-09 Modified nickel ferrite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB625855A GB782762A (en) 1955-03-03 1955-03-03 Improvements in or relating to magnetic ferrite compositions

Publications (1)

Publication Number Publication Date
GB782762A true GB782762A (en) 1957-09-11

Family

ID=9811254

Family Applications (1)

Application Number Title Priority Date Filing Date
GB625855A Expired GB782762A (en) 1955-03-03 1955-03-03 Improvements in or relating to magnetic ferrite compositions

Country Status (3)

Country Link
FR (1) FR1144795A (en)
GB (1) GB782762A (en)
NL (2) NL102383C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034988A (en) * 1958-08-22 1962-05-15 Du Pont Modified chromium oxide ferromagnetic compositions, their preparation and use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034988A (en) * 1958-08-22 1962-05-15 Du Pont Modified chromium oxide ferromagnetic compositions, their preparation and use

Also Published As

Publication number Publication date
NL205922A (en)
FR1144795A (en) 1957-10-17
NL102383C (en)

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