JPS5665954A - Rare earth element magnet and its manufacture - Google Patents

Rare earth element magnet and its manufacture

Info

Publication number
JPS5665954A
JPS5665954A JP14229279A JP14229279A JPS5665954A JP S5665954 A JPS5665954 A JP S5665954A JP 14229279 A JP14229279 A JP 14229279A JP 14229279 A JP14229279 A JP 14229279A JP S5665954 A JPS5665954 A JP S5665954A
Authority
JP
Japan
Prior art keywords
rare earth
kinds
earth element
elements
element magnet
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.)
Pending
Application number
JP14229279A
Other languages
Japanese (ja)
Inventor
Katsuhiko Yahagi
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14229279A priority Critical patent/JPS5665954A/en
Publication of JPS5665954A publication Critical patent/JPS5665954A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To provide a rare earth element magnet having high density, remarkably enhanced magnetic characteristics and a composite structure composed of an intermetallic compound of one or more kinds of rare earth elements and one or more kinds of other elements and of one or more among oxides, nitrides, etc.
CONSTITUTION: Powder of an intermetallic compound of one or more kinds of rare earth elements such as Sm and Ce and one or more kinds of other elements such as Mg and Ca is mixed with powder of one or more among oxides such as Al2O3, nitrides such as BN and AlN, carbides such as SiC and TiC and borides such as TiB2 and ZrB2 in a suitable ratio, and the mixture is pulverized, compression molded, sintered at a predetermined temp. in an inert gas atomosphere, and bound to high density by suitable heat treatment. Thus, the formation of coarse particles due to the density raise is prevented unlike a conventional method, and a rare earth element magnet with remarkably enhanced magnetic characteristics is manufactured.
COPYRIGHT: (C)1981,JPO&Japio
JP14229279A 1979-11-02 1979-11-02 Rare earth element magnet and its manufacture Pending JPS5665954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14229279A JPS5665954A (en) 1979-11-02 1979-11-02 Rare earth element magnet and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14229279A JPS5665954A (en) 1979-11-02 1979-11-02 Rare earth element magnet and its manufacture

Publications (1)

Publication Number Publication Date
JPS5665954A true JPS5665954A (en) 1981-06-04

Family

ID=15311980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14229279A Pending JPS5665954A (en) 1979-11-02 1979-11-02 Rare earth element magnet and its manufacture

Country Status (1)

Country Link
JP (1) JPS5665954A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134533A (en) * 1981-02-12 1982-08-19 Namiki Precision Jewel Co Ltd Permanent magnet alloy
JPS5946008A (en) * 1982-08-21 1984-03-15 Sumitomo Special Metals Co Ltd Permanent magnet
JPS60135539A (en) * 1983-12-22 1985-07-18 Taiyo Yuden Co Ltd Manufacture of rco5 type rare earth element-cobalt magnet
JPS62177147A (en) * 1986-01-29 1987-08-04 Daido Steel Co Ltd Manufacture of permanent magnet material
US4767474A (en) * 1983-05-06 1988-08-30 Sumitomo Special Metals Co., Ltd. Isotropic magnets and process for producing same
US4770723A (en) * 1982-08-21 1988-09-13 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
US4773950A (en) * 1983-08-02 1988-09-27 Sumitomo Special Metals Co., Ltd. Permanent magnet
US4792368A (en) * 1982-08-21 1988-12-20 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
US4826546A (en) * 1984-02-28 1989-05-02 Sumitomo Special Metal Co., Ltd. Process for producing permanent magnets and products thereof
US4840684A (en) * 1983-05-06 1989-06-20 Sumitomo Special Metals Co, Ltd. Isotropic permanent magnets and process for producing same
US4859255A (en) * 1983-08-04 1989-08-22 Sumitomo Special Metals Co., Ltd. Permanent magnets
US4916029A (en) * 1984-10-19 1990-04-10 Martin Marietta Corporation Composites having an intermetallic containing matrix
US4975130A (en) * 1983-05-21 1990-12-04 Sumitomo Special Metals Co., Ltd. Permanent magnet materials
GB2238796A (en) * 1989-12-06 1991-06-12 Philips Electronic Associated Sintering of permanent-magnet bodies of rare-earth alloys

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0336895B2 (en) * 1981-02-12 1991-06-03 Namiki Precision Jewel Co Ltd
JPS57134533A (en) * 1981-02-12 1982-08-19 Namiki Precision Jewel Co Ltd Permanent magnet alloy
US4770723A (en) * 1982-08-21 1988-09-13 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
JPS6134242B2 (en) * 1982-08-21 1986-08-06 Sumitomo Spec Metals
US4792368A (en) * 1982-08-21 1988-12-20 Sumitomo Special Metals Co., Ltd. Magnetic materials and permanent magnets
JPS5946008A (en) * 1982-08-21 1984-03-15 Sumitomo Special Metals Co Ltd Permanent magnet
US4767474A (en) * 1983-05-06 1988-08-30 Sumitomo Special Metals Co., Ltd. Isotropic magnets and process for producing same
US4840684A (en) * 1983-05-06 1989-06-20 Sumitomo Special Metals Co, Ltd. Isotropic permanent magnets and process for producing same
US4975130A (en) * 1983-05-21 1990-12-04 Sumitomo Special Metals Co., Ltd. Permanent magnet materials
US4773950A (en) * 1983-08-02 1988-09-27 Sumitomo Special Metals Co., Ltd. Permanent magnet
US4859255A (en) * 1983-08-04 1989-08-22 Sumitomo Special Metals Co., Ltd. Permanent magnets
JPS60135539A (en) * 1983-12-22 1985-07-18 Taiyo Yuden Co Ltd Manufacture of rco5 type rare earth element-cobalt magnet
US5110377A (en) * 1984-02-28 1992-05-05 Sumitomo Special Metals Co., Ltd. Process for producing permanent magnets and products thereof
US4826546A (en) * 1984-02-28 1989-05-02 Sumitomo Special Metal Co., Ltd. Process for producing permanent magnets and products thereof
US4916029A (en) * 1984-10-19 1990-04-10 Martin Marietta Corporation Composites having an intermetallic containing matrix
JPS62177147A (en) * 1986-01-29 1987-08-04 Daido Steel Co Ltd Manufacture of permanent magnet material
GB2238796A (en) * 1989-12-06 1991-06-12 Philips Electronic Associated Sintering of permanent-magnet bodies of rare-earth alloys

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