KR880002207A - 희토류금속-천이금속-붕소영구자석 제조를 위한 고에너지 볼-밀링(ball-milling) 방법 - Google Patents

희토류금속-천이금속-붕소영구자석 제조를 위한 고에너지 볼-밀링(ball-milling) 방법 Download PDF

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KR880002207A
KR880002207A KR1019870007585A KR870007585A KR880002207A KR 880002207 A KR880002207 A KR 880002207A KR 1019870007585 A KR1019870007585 A KR 1019870007585A KR 870007585 A KR870007585 A KR 870007585A KR 880002207 A KR880002207 A KR 880002207A
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South Korea
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high energy
rare earth
alloy
production
energy ball
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KR1019870007585A
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KR910003784B1 (ko
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엠.클레멘스 브루스
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에이·디·하인즈
제너럴 모터즈 코오포레이션
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • 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
    • H01F1/0576—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 pressed, e.g. hot working
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Hard Magnetic Materials (AREA)
  • Crushing And Grinding (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

내용 없음

Description

회토류금속-천이금속-붕소영구자석 제조를 위한 고에너지 볼-밀링(ball-milling) 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 사출 주조 네오디뭅-철-붕소합금리본의 x-ray 회절형상((a):언디□칭된 리본샘플, (b)는 고에너지 볼밀링후의 리본샘플, (c)는 볼밀링하여 600℃에서 아닐링한 리본샘플을 나타냄)
제2도는 제1도의 샘플에 대한 제2사분면 이력곡선
제3도는 고에너지 볼 밀링 및 고온 프레스 가공된 Nd0.14(Fe0.93B0.06)0.86 잉고트샘플에 대한 제2사분면 이력곡선

Claims (3)

  1. 영구자석 제조방법에 있어서, 자기포화상태에서 5MGOe 이하의 에너지곱(energy product)을 갖는 결정질 희토류금속-천이금속-붕소(RE-TM-B) 조성물을 균일한 합금으로 형성하고 그 합금의 주상이 RE2TM14B1이고 그리고 그 주상의 결정립이 400 나노미터(nm)보다 근본적으로 작은 크기로 감소되도록하는 고에너지 볼밀링공정(high energy ball-milling)을 포함하는 것을 특징으로 하는 영구자석 제조방법
  2. 제1항에 있어서, 상기 결정립이 성장하여 자기포화상태에서 합금의 보자력이 5000 Oersted보다 큰 값을 갖도록 상기 합금을 가열하는 공정을 포함하는 것을 특징으로 하는 영구자석 제조방법
  3. 제1항 또는 제2항에 있어서, 상기자석이 적어도 10atm%의 네오디뮴(Nd)및/또는 프라세오디뭅(Pr), 적어도 50atm% 철 및 1-10atm%의 붕소로 조성됨을 특징으로 하는 영구자석 제조방법
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870007585A 1986-07-15 1987-07-14 희토류금속-천이금속-붕소 기초 영구자석 제조방법 KR910003784B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/885,943 US4778542A (en) 1986-07-15 1986-07-15 High energy ball milling method for making rare earth-transition metal-boron permanent magnets
US885493 1986-07-15
US885,493 1986-07-15

Publications (2)

Publication Number Publication Date
KR880002207A true KR880002207A (ko) 1988-04-29
KR910003784B1 KR910003784B1 (ko) 1991-06-12

Family

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KR1019870007585A KR910003784B1 (ko) 1986-07-15 1987-07-14 희토류금속-천이금속-붕소 기초 영구자석 제조방법

Country Status (8)

Country Link
US (1) US4778542A (ko)
EP (1) EP0253521A3 (ko)
JP (1) JPS6331102A (ko)
KR (1) KR910003784B1 (ko)
CN (1) CN1007099B (ko)
AU (1) AU591996B2 (ko)
BR (1) BR8703666A (ko)
CA (1) CA1275377C (ko)

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JPH10506365A (ja) * 1994-10-04 1998-06-23 ジ オーストラリアン ナショナル ユニバーシティー 活性ボール・ミリングを使用した金属酸化物粉体の作成
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US9399223B2 (en) 2013-07-30 2016-07-26 General Electric Company System and method of forming nanostructured ferritic alloy
US9418779B2 (en) 2013-10-22 2016-08-16 Battelle Memorial Institute Process for preparing scalable quantities of high purity manganese bismuth magnetic materials for fabrication of permanent magnets
CN104646677B (zh) * 2015-01-05 2017-08-01 中国科学院物理研究所 一种磁性粉体的制备方法
CN109346258B (zh) * 2018-09-08 2020-12-18 江西理工大学 一种纳米双主相磁体及其制备方法
US11549532B1 (en) 2019-09-06 2023-01-10 Battelle Memorial Institute Assemblies, riveted assemblies, methods for affixing substrates, and methods for mixing materials to form a metallurgical bond
WO2023043839A1 (en) 2021-09-15 2023-03-23 Battelle Memorial Institute Shear-assisted extrusion assemblies and methods

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DE972014C (de) * 1954-01-20 1959-05-06 Eisen & Stahlind Ag Verfahren zur Herstellung von Dauermagneten aus feinstkoernigem ferromagnetischem Metallpulver
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Also Published As

Publication number Publication date
US4778542A (en) 1988-10-18
AU591996B2 (en) 1989-12-21
JPS6331102A (ja) 1988-02-09
CN87104923A (zh) 1988-01-27
CN1007099B (zh) 1990-03-07
CA1275377C (en) 1990-10-23
AU7525187A (en) 1988-01-21
KR910003784B1 (ko) 1991-06-12
EP0253521A2 (en) 1988-01-20
BR8703666A (pt) 1988-03-22
EP0253521A3 (en) 1990-02-07

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