JP7635937B2 - 磁石材料及び永久磁石 - Google Patents

磁石材料及び永久磁石 Download PDF

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Publication number
JP7635937B2
JP7635937B2 JP2021189389A JP2021189389A JP7635937B2 JP 7635937 B2 JP7635937 B2 JP 7635937B2 JP 2021189389 A JP2021189389 A JP 2021189389A JP 2021189389 A JP2021189389 A JP 2021189389A JP 7635937 B2 JP7635937 B2 JP 7635937B2
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Prior art keywords
atomic
phase
grain boundary
number satisfying
concentration
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Japanese (ja)
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JP2023076154A5 (enExample
JP2023076154A (ja
Inventor
新哉 桜田
諭 杉本
昌志 松浦
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Tohoku University NUC
Toshiba Corp
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Tohoku University NUC
Toshiba Corp
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Priority to JP2021189389A priority Critical patent/JP7635937B2/ja
Priority to US17/897,265 priority patent/US20230162897A1/en
Publication of JP2023076154A publication Critical patent/JP2023076154A/ja
Publication of JP2023076154A5 publication Critical patent/JP2023076154A5/ja
Priority to JP2025016707A priority patent/JP7766894B2/ja
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    • 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
    • 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
    • C22C38/10—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
    • 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
    • H01F1/0551—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • 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
    • H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
    • H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 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
    • C22C2202/00—Physical properties
    • C22C2202/02—Magnetic

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  • 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)
  • Powder Metallurgy (AREA)
JP2021189389A 2021-11-22 2021-11-22 磁石材料及び永久磁石 Active JP7635937B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021189389A JP7635937B2 (ja) 2021-11-22 2021-11-22 磁石材料及び永久磁石
US17/897,265 US20230162897A1 (en) 2021-11-22 2022-08-29 Magnet material and permanent magnet
JP2025016707A JP7766894B2 (ja) 2021-11-22 2025-02-04 磁石材料及び永久磁石

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021189389A JP7635937B2 (ja) 2021-11-22 2021-11-22 磁石材料及び永久磁石

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JP2023076154A JP2023076154A (ja) 2023-06-01
JP2023076154A5 JP2023076154A5 (enExample) 2024-07-12
JP7635937B2 true JP7635937B2 (ja) 2025-02-26

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JP2025016707A Active JP7766894B2 (ja) 2021-11-22 2025-02-04 磁石材料及び永久磁石

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US (1) US20230162897A1 (enExample)
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4320701B2 (ja) 2001-11-09 2009-08-26 日立金属株式会社 永久磁石合金及びボンド磁石
WO2011030387A1 (ja) 2009-09-11 2011-03-17 株式会社 東芝 磁石材料、永久磁石、およびそれを用いたモータと発電機
JP2018125512A (ja) 2016-08-24 2018-08-09 株式会社東芝 磁石材料、永久磁石、回転電機、及び車両
JP2020155774A (ja) 2019-03-14 2020-09-24 株式会社東芝 磁石材料、永久磁石、回転電機、及び車両

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4320701B2 (ja) 2001-11-09 2009-08-26 日立金属株式会社 永久磁石合金及びボンド磁石
WO2011030387A1 (ja) 2009-09-11 2011-03-17 株式会社 東芝 磁石材料、永久磁石、およびそれを用いたモータと発電機
JP2018125512A (ja) 2016-08-24 2018-08-09 株式会社東芝 磁石材料、永久磁石、回転電機、及び車両
JP2020155774A (ja) 2019-03-14 2020-09-24 株式会社東芝 磁石材料、永久磁石、回転電機、及び車両

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US20230162897A1 (en) 2023-05-25
JP7766894B2 (ja) 2025-11-11
JP2025072484A (ja) 2025-05-09
JP2023076154A (ja) 2023-06-01

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