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GB751623A - Improvements in or relating to ferromagnetic ceramic bodies - Google Patents

Improvements in or relating to ferromagnetic ceramic bodies

Info

Publication number
GB751623A
GB751623A GB3126/54A GB312654A GB751623A GB 751623 A GB751623 A GB 751623A GB 3126/54 A GB3126/54 A GB 3126/54A GB 312654 A GB312654 A GB 312654A GB 751623 A GB751623 A GB 751623A
Authority
GB
United Kingdom
Prior art keywords
per cent
oxide
nickel
coo
zinc
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
GB3126/54A
Inventor
Georg Zerbes
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.)
STRATIT MAGNESIA AG
Steatite Research Corp
Original Assignee
STRATIT MAGNESIA AG
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 STRATIT MAGNESIA AG, Steatite Research Corp filed Critical STRATIT MAGNESIA AG
Publication of GB751623A publication Critical patent/GB751623A/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
    • C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising 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)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)

Abstract

751,623. Magnetic compositions. STEATITE RESEARCH CORPORATION, and STEATITMAGNESIA AKT.-GES. Feb. 2, 1954 [Nov. 27, 1953], No. 3126/54. Drawings to Specification. Class 38 (2). A ferromagnetic ferrite material of spinel structure with low loss at high frequencies is made from a batch of material of which 97-99 per cent consists of nickel-zinc ferrite comprising 58-80 per cent iron oxide, 2-40 per cent zinc oxide and 2-40 per cent nickel oxide, there being an addition of 0.1-30 per cent of cobalt oxide, the cobalt oxide being present to the extent of 1-60 per cent of the nickel oxide all precentages being by weight. In a modification this material may form 90-99 per cent of a composite material of which 1-10 per cent consists of manganese oxide. Up to 3 per cent of oxide of other metals such as calcium magnesium, titanium, oraluminium may be present in both cases. The Q and initial permeability values at 1 MC are given for a number of materials of different, specified proportions of ZaO, NiO and Fe 2 0 3 , with and without 0.7 per cent of CoO and of 2 per cent MnO and 0.7 per cent CoO. The material is made by mixing ground oxides with water and an organic binding agent and firing in air at between 1100 and 1350‹ C.
GB3126/54A 1953-11-27 1954-02-02 Improvements in or relating to ferromagnetic ceramic bodies Expired GB751623A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST7388A DE1017521B (en) 1953-11-27 1953-11-27 Process for the production of ferromagnetic, ceramic bodies with high quality at high frequency

Publications (1)

Publication Number Publication Date
GB751623A true GB751623A (en) 1956-07-04

Family

ID=7454253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3126/54A Expired GB751623A (en) 1953-11-27 1954-02-02 Improvements in or relating to ferromagnetic ceramic bodies

Country Status (4)

Country Link
DE (1) DE1017521B (en)
FR (1) FR1114518A (en)
GB (1) GB751623A (en)
NL (1) NL110938C (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989478A (en) * 1955-11-16 1961-06-20 Stcatit Magnesia Ag Ferrite with constricted magnetic hysteresis loop
US2989475A (en) * 1955-10-25 1961-06-20 Steatit Magnesia Ag Ferrite of field independent permeability
US2989472A (en) * 1955-10-20 1961-06-20 Steatit Magnesia Ag Ferrite with constricted magnetic hysteresis loop
US3020235A (en) * 1956-10-19 1962-02-06 Philips Corp Ferromagnetic material
US3020426A (en) * 1956-02-14 1962-02-06 Philips Corp Ferromagnetic material
US3036009A (en) * 1958-08-11 1962-05-22 Steatit Magnesia Ag Ferromagnetic, ceramic body with high quality at high frequency
US3039966A (en) * 1959-06-17 1962-06-19 Philips Corp Square loop ferromagnetic material
US3142645A (en) * 1958-08-11 1964-07-28 Steatit Magnesia Ag Ferromagnetic, ceramic body with a high quality factor at high frequency
EP0086444A1 (en) * 1982-02-13 1983-08-24 TDK Corporation Magnetic carrier powder for two-component toner
EP0086445A1 (en) * 1982-02-12 1983-08-24 TDK Corporation Magnetic carrier powder
GB2260539A (en) * 1991-09-11 1993-04-21 American Res Corp Virginia Ferrimagnetic core materials for megahertz frequency high flux density transformers and inductors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182129B (en) * 1958-06-04 1964-11-19 Licentia Gmbh Process for the production of a magnetic core material with an almost rectangular hysteresis loop
DE1288967B (en) * 1965-04-09 1969-02-06 Siemens Ag Process for the production of magnetizable ferrite cores with low losses

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT168523B (en) * 1946-03-27 1951-06-25 Philips Nv Magnetic core for frequencies exceeding 1000 kHz and process for its manufacture

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989472A (en) * 1955-10-20 1961-06-20 Steatit Magnesia Ag Ferrite with constricted magnetic hysteresis loop
US2989475A (en) * 1955-10-25 1961-06-20 Steatit Magnesia Ag Ferrite of field independent permeability
US2989478A (en) * 1955-11-16 1961-06-20 Stcatit Magnesia Ag Ferrite with constricted magnetic hysteresis loop
US3020426A (en) * 1956-02-14 1962-02-06 Philips Corp Ferromagnetic material
US3020235A (en) * 1956-10-19 1962-02-06 Philips Corp Ferromagnetic material
US3142645A (en) * 1958-08-11 1964-07-28 Steatit Magnesia Ag Ferromagnetic, ceramic body with a high quality factor at high frequency
US3036009A (en) * 1958-08-11 1962-05-22 Steatit Magnesia Ag Ferromagnetic, ceramic body with high quality at high frequency
US3039966A (en) * 1959-06-17 1962-06-19 Philips Corp Square loop ferromagnetic material
EP0086445A1 (en) * 1982-02-12 1983-08-24 TDK Corporation Magnetic carrier powder
US4485162A (en) * 1982-02-12 1984-11-27 Tdk Electronics Co., Ltd. Magnetic carrier powder having a wide chargeable range of electric resistance useful for magnetic brush development
EP0086444A1 (en) * 1982-02-13 1983-08-24 TDK Corporation Magnetic carrier powder for two-component toner
GB2260539A (en) * 1991-09-11 1993-04-21 American Res Corp Virginia Ferrimagnetic core materials for megahertz frequency high flux density transformers and inductors
US5626789A (en) * 1991-09-11 1997-05-06 American Research Corp. Of Virginia Ferrimagnetic core materials for megahertz frequency high flux density transformers and inductors
US6433299B1 (en) 1991-09-11 2002-08-13 American Research Corporation Of Virginia Monolithic magnetic modules for integrated planar magnetic circuitry and process for manufacturing same

Also Published As

Publication number Publication date
DE1017521B (en) 1957-10-10
NL110938C (en) 1965-04-15
FR1114518A (en) 1956-04-13

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