JPS5665954A - Rare earth element magnet and its manufacture - Google Patents
Rare earth element magnet and its manufactureInfo
- 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
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
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)
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 |
-
1979
- 1979-11-02 JP JP14229279A patent/JPS5665954A/en active Pending
Cited By (17)
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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