JPS51133797A - Rare earth cobalt system permanent magnet - Google Patents
Rare earth cobalt system permanent magnetInfo
- Publication number
- JPS51133797A JPS51133797A JP50058351A JP5835175A JPS51133797A JP S51133797 A JPS51133797 A JP S51133797A JP 50058351 A JP50058351 A JP 50058351A JP 5835175 A JP5835175 A JP 5835175A JP S51133797 A JPS51133797 A JP S51133797A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- rare earth
- mono
- magnetic particles
- earth cobalt
- 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.)
- Granted
Links
- 229910052761 rare earth metal Inorganic materials 0.000 title abstract 3
- 150000002910 rare earth metals Chemical class 0.000 title abstract 3
- 229910017052 cobalt Inorganic materials 0.000 title abstract 2
- 239000010941 cobalt Substances 0.000 title abstract 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title abstract 2
- 239000006249 magnetic particle Substances 0.000 abstract 3
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 229910052777 Praseodymium Inorganic materials 0.000 abstract 1
- 229910052772 Samarium Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052746 lanthanum Inorganic materials 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 abstract 1
Landscapes
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To provide a rare earth cobalt system permanent magnet consisting of an AB5 tyep and A2B17 type hexagonal crystal system intermetalic compound containing A1,2B4,8, where A is at least one member of a group consisting of Y, La, Ce, Pr, Sm and MM and B is Co or a combination of Co and at least one memmember of a group consisting of Mn, Fe, Cu, and Ni, is finely pulverized in an eventually pure state into mono-magnetic particles. A suitable quantity of oxygen is made to be contained in the mono-magnetic particles to form a hexagonal crystalline Co layer on the surface of the mono-magnetic particles, followed by compression and sintering to thereby obtain a rare earth Co cystem permanent magnet. Since a mixture of A2P3 type oxide and a hexagonal crystalline metalic Co is formed on the particle surface, that is, since the surface does not consist of A2O3 and CoO, the coercive force can be improved.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50058351A JPS51133797A (en) | 1975-05-15 | 1975-05-15 | Rare earth cobalt system permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50058351A JPS51133797A (en) | 1975-05-15 | 1975-05-15 | Rare earth cobalt system permanent magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS51133797A true JPS51133797A (en) | 1976-11-19 |
| JPS5640484B2 JPS5640484B2 (en) | 1981-09-21 |
Family
ID=13081887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50058351A Granted JPS51133797A (en) | 1975-05-15 | 1975-05-15 | Rare earth cobalt system permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS51133797A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848607A (en) * | 1981-09-18 | 1983-03-22 | Tohoku Metal Ind Ltd | Production of rare earth cobalt magnet |
| US5129964A (en) * | 1989-09-06 | 1992-07-14 | Sps Technologies, Inc. | Process for making nd-b-fe type magnets utilizing a hydrogen and oxygen treatment |
| US7018706B2 (en) * | 2002-05-27 | 2006-03-28 | Moon Soo Lee | Static-electricity tile |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019202731A1 (en) | 2018-04-20 | 2019-10-24 | 三菱電機株式会社 | Vehicle heat exchange system and vehicle air conditioning system |
-
1975
- 1975-05-15 JP JP50058351A patent/JPS51133797A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848607A (en) * | 1981-09-18 | 1983-03-22 | Tohoku Metal Ind Ltd | Production of rare earth cobalt magnet |
| US5129964A (en) * | 1989-09-06 | 1992-07-14 | Sps Technologies, Inc. | Process for making nd-b-fe type magnets utilizing a hydrogen and oxygen treatment |
| US5286307A (en) * | 1989-09-06 | 1994-02-15 | Sps Technologies, Inc. | Process for making Nd-B-Fe type magnets utilizing a hydrogen and oxygen treatment |
| US7018706B2 (en) * | 2002-05-27 | 2006-03-28 | Moon Soo Lee | Static-electricity tile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5640484B2 (en) | 1981-09-21 |
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