自動車用PM軟磁性合金について(PM軟磁性合金の磁気特性と焼結孔の関係) Automotive PM Soft Magnetic Alloys (Relation between Magnetic Properties and Residual Pores in PM Soft Magnetic Alloys)

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The objective of this study is to elucidate the relation between magnetic properties and residual pores in various PM magnetic alloys typical of car parts, mainly from authors'experimental results. In practice, magnetic properties was discussed and evaluated from the three points of view: porosity and pore size/shape control, acceptable limit of residual pore for practical use, and pore reduction by sintering technique.<BR>The results obtained were summarized as follows:<BR>(1) Soft magnetic properties were more or less affected by pore morphologies (size/shape) as well as porosity and consequently, expressed with linear equation of these parameters, based on the size-shape dispersion diagram.<BR>(2) Pore dependence of magnetic degradation caused by material defects (faults), deformation, heat-treatment, corrosion attack etc. was quantitatively evaluated together with magnetically-restoring methods.<BR>(3) Several approaches to poreless magnetic alloys were tried by means of pertinent sintering technique such as powder refining-, liquid phase-, spark plasma-sintering and further, micro/macroscopic composite ones are expected as being characteristic of powder metallurgy.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 49(5), 430-437, 2002-05-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10008559630
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    6169512
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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