Sm_3(Fe, Co, M)_<29>N_Y化合物(M=V, Cr)の磁気特性 Magnetic Properties of Sm_3(Fe, Co, M)_<29>N_Y Compounds(M=V, Cr)

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An experiment was carried out to investigate the magnetic and physical properties of Sm3(Fe<SUB>0.81</SUB>Co<SUB>0.10</SUB>V<SUB>0.09</SUB>)<SUB>29</SUB>Nr and Sms(Fe<SUB>0.75</SUB>Co<SUB>0.10</SUB>Cr<SUB>0.15</SUB>)<SUB>29</SUB>Ny compounds. These compounds were prepared by nitrogenation of Sn (Fe<SUB>0.81</SUB>Co<SUB>0.10</SUB>V<SUB>0.09</SUB>)29 and Sm<SUB>3</SUB>(Fe<SUB>0.75</SUB>Co<SUB>0.10</SUB>Cr<SUB>0.15</SUB>)<SUB>29</SUB> alloy powders (about 30μm) in high-purity nitrogen gas at pressure of 4.9MPa, and temperatures of 475-600°C for 0.5-5h. Sm<SUB>3</SUB>(Fe<SUB>0.75</SUB>Co<SUB>0.10</SUB>Cr<SUB>0.15</SUB>)<SUB>29</SUB>Ny alloy powders get a high coerrivily after nitrogenation. It was found when Sm<SUB>3</SUB>(Fe<SUB>0.75</SUB>Co<SUB>0.10</SUB>Cr<SUB>0.15</SUB>)<SUB>29</SUB>Nr powders were subsequently heated at 500-600°C for 3-25h under 98kPa of argon atmosphere, the value of coercivity of this compounds increased. The conditions determined as optimum for preparing the powders with best values of σ<SUB>s</SUB>=139.5×10<SUP>-6</SUP>Wb-rndkg, HcJ=332kA/m, H<SUB>A</SUB>= 4.62MA/m, and T<SUB>c</SUB> = 563.9t, are as follows: nitrogenation ; 600°C×1h, heat treatment ; 5501×10h. These powders were found to absorb approximately 7-8atoms of nitrogen per unit formula.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 43(8), 1019-1024, 1996-08-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002012877
  • 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
    4012527
  • 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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