GB1271706A - Improvements in or relating to manganese-zinc ferrite materials - Google Patents

Improvements in or relating to manganese-zinc ferrite materials

Info

Publication number
GB1271706A
GB1271706A GB52022/69A GB5202269A GB1271706A GB 1271706 A GB1271706 A GB 1271706A GB 52022/69 A GB52022/69 A GB 52022/69A GB 5202269 A GB5202269 A GB 5202269A GB 1271706 A GB1271706 A GB 1271706A
Authority
GB
United Kingdom
Prior art keywords
oxide
weight
hours
manganese
per cent
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
GB52022/69A
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.)
NEC Corp
Original Assignee
Nippon Electric 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
Application filed by Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Publication of GB1271706A publication Critical patent/GB1271706A/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
    • C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn 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

1,271,706. Magnetic oxides. NIPPON ELECTRIC CO. Ltd. 23 Oct., 1969 [30 Oct., 1968], No. 52022/69. Heading H1H. A manganese zinc ferrite contains stannic oxide (up to 3À2% by weight) and lithium oxide (less than 0À125% by weight). The ferrite may also contain calcium oxide (less than 0À3% by weight) and silicon oxide (less than 0À04% by weight). The ferrite may be made by mixing and pulversizing in alcohol a mixture of iron oxide, manganese carbonate, zinc oxide, calcium oxide, silicon oxide, stannic acid and lithium carbonate, presintering the mixture for 4 hours at 800‹ C., pressing and then sintering for 8 hours at 1180‹ C. in an atmosphere of N 2 containing 0À4% O 2 . In one embodiment, the product is subsequently heated at 250‹ C. for 32 hours. Examples describe the effect of adding various proportions of oxides of tin, lithium, calcium and silicon to ferrites containing 32À0- 38-0 mol per cent MnO, 6À10-13À15 mol per cent ZnO and 54À40-55À90 mol per cent Fe 2 O 3 . The compositions have a quality factor tan # - < 1À3 x 10-<SP>6</SP> and a hysteresis loss factor Á L 10 < 5À0.
GB52022/69A 1968-10-30 1969-10-23 Improvements in or relating to manganese-zinc ferrite materials Expired GB1271706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7954068A JPS546713B1 (en) 1968-10-30 1968-10-30

Publications (1)

Publication Number Publication Date
GB1271706A true GB1271706A (en) 1972-04-26

Family

ID=13692816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52022/69A Expired GB1271706A (en) 1968-10-30 1969-10-23 Improvements in or relating to manganese-zinc ferrite materials

Country Status (6)

Country Link
US (1) US3652416A (en)
JP (1) JPS546713B1 (en)
CA (1) CA918906A (en)
DE (1) DE1953286B2 (en)
FR (1) FR2021906A1 (en)
GB (1) GB1271706A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565046B1 (en) * 1969-05-09 1981-02-03
US4372865A (en) * 1980-09-26 1983-02-08 Spang Industries, Inc. Carbonate/hydroxide coprecipitation process
EP0551907B1 (en) * 1992-01-14 1997-04-09 Matsushita Electric Industrial Co., Ltd. An oxide magnetic material
US6858155B1 (en) 2001-12-12 2005-02-22 Spang & Company Ferrite materials, methods of preparing the same, and products formed therefrom
JP2007238429A (en) * 2006-02-08 2007-09-20 Tdk Corp Ferrite material
US20070267594A1 (en) * 2006-05-17 2007-11-22 Fanton Mark A Ferrite materials, methods of preparing the same, and products formed therefrom

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL135865C (en) * 1963-07-26
JPS4832873B1 (en) * 1964-11-27 1973-10-09

Also Published As

Publication number Publication date
DE1953286B2 (en) 1972-12-07
DE1953286A1 (en) 1970-05-14
JPS546713B1 (en) 1979-03-30
US3652416A (en) 1972-03-28
FR2021906A1 (en) 1970-07-24
CA918906A (en) 1973-01-16

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