CA1273231A - Alliage d'aimant permanent - Google Patents

Alliage d'aimant permanent

Info

Publication number: CA1273231A
Authority: CA; Canada
Prior art keywords: dysprosium; alloy; coercive force; neodymium; permanent magnet
Prior art date: 1984-12-10
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 - Fee Related

Application number

CA000488736A

Other languages

English (en)

Inventor

Kalathur S.V.L. Narasimhan

Bao-Min Ma

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.)

Crucible Materials Corp

Original Assignee

Crucible Materials 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.)

1984-12-10

Filing date

1985-08-14

Publication date

1990-08-28

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24728160&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA1273231(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1985-08-14 Application filed by Crucible Materials Corp filed Critical Crucible Materials Corp

1990-08-28 Application granted granted Critical

1990-08-28 Publication of CA1273231A publication Critical patent/CA1273231A/fr

2007-08-28 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

229910045601 alloy Inorganic materials 0.000 title claims abstract description 23
239000000956 alloy Substances 0.000 title claims abstract description 23
229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 19
KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims abstract description 17
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
229910052779 Neodymium Inorganic materials 0.000 claims abstract description 10
QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims abstract description 10
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 6
229910052742 iron Inorganic materials 0.000 claims abstract description 6
229910052796 boron Inorganic materials 0.000 claims abstract description 5
230000005347 demagnetization Effects 0.000 abstract description 4
229910052761 rare earth metal Inorganic materials 0.000 description 5
239000013078 crystal Substances 0.000 description 4
230000007423 decrease Effects 0.000 description 3
150000002910 rare earth metals Chemical class 0.000 description 3
229910000521 B alloy Inorganic materials 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
229910000640 Fe alloy Inorganic materials 0.000 description 1
229910000583 Nd alloy Inorganic materials 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000004907 flux Effects 0.000 description 1
229910001172 neodymium magnet Inorganic materials 0.000 description 1
239000002245 particle Substances 0.000 description 1
239000000843 powder Substances 0.000 description 1
230000002277 temperature effect Effects 0.000 description 1

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Crystallography & Structural Chemistry (AREA)
Inorganic Chemistry (AREA)
Power Engineering (AREA)
Hard Magnetic Materials (AREA)

CA000488736A 1984-12-10 1985-08-14 Alliage d'aimant permanent Expired - Fee Related CA1273231A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US67973984A	1984-12-10	1984-12-10
US679,739		1984-12-10

Publications (1)

Publication Number	Publication Date
CA1273231A true CA1273231A (fr)	1990-08-28

Family

ID=24728160

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000488736A Expired - Fee Related CA1273231A (fr)	1984-12-10	1985-08-14	Alliage d'aimant permanent

Country Status (5)

Country	Link
EP (1)	EP0185439B1 (fr)
JP (1)	JPS61139641A (fr)
AT (1)	ATE43932T1 (fr)
CA (1)	CA1273231A (fr)
DE (1)	DE3570942D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4837109A (en) *	1986-07-21	1989-06-06	Hitachi Metals, Ltd.	Method of producing neodymium-iron-boron permanent magnet
EP0277416A3 (fr) *	1987-02-04	1990-05-16	Crucible Materials Corporation	Alliage pour aimant permanent pour applications à haute température
JP2001332410A (ja) *	2000-05-22	2001-11-30	Seiko Epson Corp	磁石粉末、磁石粉末の製造方法およびボンド磁石

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ES8504404A3 (es) *	1981-06-16	1985-04-16	Proyectos Magneticos S A Proma	Procedimiento para la fabricacion de una aleacion que tiene propiedades magneticas permanentes a temperatura ambiente
JPS59163802A (ja) *	1983-03-08	1984-09-14	Sumitomo Special Metals Co Ltd	永久磁石材料
EP0108474B2 (fr) *	1982-09-03	1995-06-21	General Motors Corporation	Alliages de RE-TM-B, procédé de production et aimants permanents contenant tels alliages
JPS59204209A (ja) *	1983-05-06	1984-11-19	Sumitomo Special Metals Co Ltd	等方性永久磁石材料
JPS59215460A (ja) *	1983-05-21	1984-12-05	Sumitomo Special Metals Co Ltd	永久磁石材料の製造方法

1985
- 1985-08-14 CA CA000488736A patent/CA1273231A/fr not_active Expired - Fee Related
- 1985-08-30 EP EP85306148A patent/EP0185439B1/fr not_active Expired
- 1985-08-30 AT AT85306148T patent/ATE43932T1/de not_active IP Right Cessation
- 1985-08-30 DE DE8585306148T patent/DE3570942D1/de not_active Expired
- 1985-09-10 JP JP60198721A patent/JPS61139641A/ja active Pending

Also Published As

Publication number	Publication date
JPS61139641A (ja)	1986-06-26
ATE43932T1 (de)	1989-06-15
EP0185439B1 (fr)	1989-06-07
EP0185439A1 (fr)	1986-06-25
DE3570942D1 (en)	1989-07-13

Legal Events

Date	Code	Title	Description
1993-02-28	MKLA	Lapsed

Publication	Publication Date	Title
EP0134304B1 (fr)	1987-07-08	Aimants permanents
US4773950A (en)	1988-09-27	Permanent magnet
JPS5964733A (ja)	1984-04-12	永久磁石
US5230749A (en)	1993-07-27	Permanent magnets
EP0264153A1 (fr)	1988-04-20	Matériau magnétique comprenant du fer, bore et métal de terre rare
US4211585A (en)	1980-07-08	Samarium-cobalt-copper-iron-titanium permanent magnets
CA1273231A (fr)	1990-08-28	Alliage d'aimant permanent
US5403408A (en)	1995-04-04	Non-uniaxial permanent magnet material
Kim	1988	High coercivity Nd‐Fe‐B magnets with lower dysprosium content
JPS59132105A (ja)	1984-07-30	永久磁石用合金
EP0286357A2 (fr)	1988-10-12	Aimant permanent du type Fe-B-MM à phases multiples
EP0652572B1 (fr)	2000-04-05	Aimants chauffés sous pression
Chang et al.	2003	Magnetic properties, Mössbauer and aftereffect studies of Pr 10 Fe 90− x B x (x= 5.88–11.5) nanocomposites
GB2232165A (en)	1990-12-05	Magnetic compositions
JPH0422006B2 (fr)	1992-04-15
JPH0536495B2 (fr)	1993-05-31
JPS59218705A (ja)	1984-12-10	永久磁石材料の製造方法
US5055146A (en)	1991-10-08	Permanent magnet alloy
JPH0346963B2 (fr)	1991-07-17
AU720995B2 (en)	2000-06-22	Permanent magnet
JPS6362842A (ja)	1988-03-19	希土類永久磁石材料
CA1279777C (fr)	1991-02-05	Aimant permanent
JPS59163804A (ja)	1984-09-14	永久磁石用合金
Ray et al.	1989	Long term aging and irreversible losses at elevated temperatures of Nd-Fe-B magnets with cobalt and dysprosium additions
JPS62188747A (ja)	1987-08-18	含弗素合金系永久磁石材料