WO2012102497A3 - Aimant fritté r-fe-b avec propriétés mécaniques améliorées et procédé de production associé - Google Patents

Aimant fritté r-fe-b avec propriétés mécaniques améliorées et procédé de production associé Download PDF

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Publication number
WO2012102497A3
WO2012102497A3 PCT/KR2012/000139 KR2012000139W WO2012102497A3 WO 2012102497 A3 WO2012102497 A3 WO 2012102497A3 KR 2012000139 W KR2012000139 W KR 2012000139W WO 2012102497 A3 WO2012102497 A3 WO 2012102497A3
Authority
WO
WIPO (PCT)
Prior art keywords
sintered magnet
crystal grains
producing
same
mechanical properties
Prior art date
Application number
PCT/KR2012/000139
Other languages
English (en)
Other versions
WO2012102497A2 (fr
Inventor
Young-Do Kim
Se-Hoon Kim
Jin-Woo Kim
Original Assignee
Industry-University Cooperation Foundation, Hanyang University
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
Priority claimed from KR1020110126640A external-priority patent/KR101243347B1/ko
Application filed by Industry-University Cooperation Foundation, Hanyang University filed Critical Industry-University Cooperation Foundation, Hanyang University
Priority to US13/979,427 priority Critical patent/US20130284969A1/en
Publication of WO2012102497A2 publication Critical patent/WO2012102497A2/fr
Publication of WO2012102497A3 publication Critical patent/WO2012102497A3/fr

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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
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties
    • C22C2202/02—Magnetic

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)

Abstract

La présente invention concerne un aimant fritté R-Fe-B et son procédé de production. Plus spécifiquement, l'invention concerne un aimant fritté R-Fe-B (R=Nd, Dy, Pr, Tb, Ho, La, Ce, Sm, Gd, Er, Tm, Yb, Lu or Th) ayant une structure dans laquelle les grains cristallins R2Fe14B en tant que phases majeures sont entourés de phases riches en R, l'angle dièdre entre deux grains cristallins R2Fe14B adjacents et la phase riche en R en contact avec les grains cristallins R2Fe14B étant de 70° ou moins dans une jonction triple formée par les grains cristallins R2Fe14B. L'aimant fritté conserve un champ coercitif élevé et présente des propriétés mécaniques améliorées et est donc applicable dans le domaine des moteurs ou des aimants permanents utilisés à températures élevées.
PCT/KR2012/000139 2011-01-25 2012-01-06 Aimant fritté r-fe-b avec propriétés mécaniques améliorées et procédé de production associé WO2012102497A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/979,427 US20130284969A1 (en) 2011-01-25 2012-01-06 R-fe-b sintered magnet with enhanced mechanical properties and method for producing the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20110007297 2011-01-25
KR10-2011-0007297 2011-01-25
KR10-2011-0126640 2011-11-30
KR1020110126640A KR101243347B1 (ko) 2011-01-25 2011-11-30 기계적 물성이 향상된 Ｒ－Ｆｅ－Ｂ계 소결자석 및 이의 제조방법

Publications (2)

Publication Number Publication Date
WO2012102497A2 WO2012102497A2 (fr) 2012-08-02
WO2012102497A3 true WO2012102497A3 (fr) 2012-11-01

Family

ID=46581244

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/000139 WO2012102497A2 (fr) 2011-01-25 2012-01-06 Aimant fritté r-fe-b avec propriétés mécaniques améliorées et procédé de production associé

Country Status (1)

Country Link
WO (1) WO2012102497A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2674370T3 (es) * 2013-03-29 2018-06-29 Hitachi Metals, Ltd. Imán sinterizado a base de R-T-B
JP6265368B2 (ja) * 2013-04-22 2018-01-24 昭和電工株式会社 Ｒ−ｔ−ｂ系希土類焼結磁石およびその製造方法
CN103474225B (zh) * 2013-07-20 2015-11-25 南通万宝实业有限公司 一种镝铈掺杂的钕铁硼磁体的制备方法
CN104505206B (zh) * 2014-12-04 2018-07-17 浙江大学 一种高矫顽力烧结钕铁硼的制备方法及产品
EP3279906A4 (fr) * 2015-04-02 2018-07-04 Xiamen Tungsten Co. Ltd. Aimant à terre rare contenant du ho et du w
CN110148508A (zh) * 2019-04-28 2019-08-20 深圳市吉胜华力科技有限公司 一种稀土永磁材料
CN111091945B (zh) * 2019-12-31 2021-09-28 厦门钨业股份有限公司 一种r-t-b系永磁材料、原料组合物、制备方法、应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050036165A (ko) * 2003-10-15 2005-04-20 자화전자 주식회사 본드자석용 마이크로 결정구조의 고보자력 자석분말제조방법 및 이에 의해 제조된 자석분말
KR20060102483A (ko) * 2005-03-23 2006-09-27 신에쓰 가가꾸 고교 가부시끼가이샤 희토류 영구자석
US20080286595A1 (en) * 2006-03-03 2008-11-20 Hitachi Metals, Ltd. R-Fe-B Rare Earth Sintered Magnet and Method for Producing Same
KR20100097580A (ko) * 2009-02-26 2010-09-03 한양대학교 산학협력단 반복 열처리를 통한 소결자석의 제조방법 및 그로부터 제조된 소결자석

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050036165A (ko) * 2003-10-15 2005-04-20 자화전자 주식회사 본드자석용 마이크로 결정구조의 고보자력 자석분말제조방법 및 이에 의해 제조된 자석분말
KR20060102483A (ko) * 2005-03-23 2006-09-27 신에쓰 가가꾸 고교 가부시끼가이샤 희토류 영구자석
US20080286595A1 (en) * 2006-03-03 2008-11-20 Hitachi Metals, Ltd. R-Fe-B Rare Earth Sintered Magnet and Method for Producing Same
KR20100097580A (ko) * 2009-02-26 2010-09-03 한양대학교 산학협력단 반복 열처리를 통한 소결자석의 제조방법 및 그로부터 제조된 소결자석

Also Published As

Publication number Publication date
WO2012102497A2 (fr) 2012-08-02

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