Improvement of Intrinsic Coercivity in HDDR-processed Anisotropic Permanent Magnets.

• Ikegami Takashi

  Sumitomo Special Metals Co. Ltd.

• Hirosawa Satoshi

  Sumitomo Special Metals Co. Ltd.

Bibliographic Information

Other Title

• シナジー磁石　Ｎｄ‐Ｆｅ‐Ｂ系異方性ＨＤＤＲ処理粉の高保磁力化
• Nd Fe Bケイ イホウセイ HDDR ショリ フン ノ コウ ホジリョクカ

Abstract

High-coercivity anisotropic magnet powder of H_cJ=1.24MA/m has been developed in HDDR process by substituting Dy for Nd to decrease the value of irreversible thermal flux losses. The newly developed powder provides lower irreversible thermal losses than MQP-B up to 100°C when molded into resin-bonded magnets. The magnets made from the high-HcJ powder give higher relative open flux when magnetized under a magnetization field of 1.2MA/m at 80°C than magnetized at 20°C. To magnetize these magnets at high temperature also decreases the value of irreversible thermal flux losses.

Journal

• Journal of the Japan Society of Powder and Powder Metallurgy

  Journal of the Japan Society of Powder and Powder Metallurgy 44 (9), 818-821, 1997

  Japan Society of Powder and Powder Metallurgy

Keywords

• Dy
• HDDR
• anisotropic bonded magnet
• irreversible losses
• intrinsic coercivity

Details

• CRID: 1390282681284430336
• NII Article ID: 10002014526
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.44.818
• COI: 1:CAS:528:DyaK2sXmslelt7g%3D
• ISSN: 18809014
• ISSN: 05328799
• ISSN: http://id.crossref.org/issn/05328799
• NDL BIB ID: 4304480
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4304480
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed