Magnetic Properties of Sm3(Fe, Co, M)29NY Compounds(M=V, Cr).

• Yamamoto Hiroshi

  School of Science and Technology, Meiji University

• Takahashi Kashu

  School of Science and Technology, Meiji University

• Tomii Kazuya

  School of Science and Technology, Meiji University

Bibliographic Information

Other Title

• Ｓｍ３（Ｆｅ，Ｃｏ，Ｍ）２９ＮＹ化合物（Ｍ＝Ｖ，Ｃｒ）の磁気特性
• Sm3 Fe Co M 29NY カゴウブツ M V Cr ノ ジキ トクセイ

Abstract

An experiment was carried out to investigate the magnetic and physical properties of Sm3(Fe_0.81Co_0.10V_0.09)₂₉Nr and Sms(Fe_0.75Co_0.10Cr_0.15)₂₉Ny compounds. These compounds were prepared by nitrogenation of Sn (Fe_0.81Co_0.10V_0.09)29 and Sm₃(Fe_0.75Co_0.10Cr_0.15)₂₉ alloy powders (about 30μm) in high-purity nitrogen gas at pressure of 4.9MPa, and temperatures of 475-600°C for 0.5-5h. Sm₃(Fe_0.75Co_0.10Cr_0.15)₂₉Ny alloy powders get a high coerrivily after nitrogenation. It was found when Sm₃(Fe_0.75Co_0.10Cr_0.15)₂₉Nr 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_s=139.5×10^-6Wb-rndkg, HcJ=332kA/m, H_A= 4.62MA/m, and T_c = 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.

Journal

• Journal of the Japan Society of Powder and Powder Metallurgy

  Journal of the Japan Society of Powder and Powder Metallurgy 43 (8), 1019-1024, 1996

  Japan Society of Powder and Powder Metallurgy

Keywords

• Sm<SUB>3</SUB>(Fe<SUB>0.81</SUB>Co<SUB>0.10</SUB>V<SUB>0.09</SUB>)<SUB>29</SUB>N<SUB>Y</SUB> and Sm<SUB>3</SUB>(Fe<SUB>0.75</SUB>Co<SUB>0.10</SUB>Cr<SUB>0.15</SUB>)<SUB>29</SUB>N<SUB>Y</SUB> compounds
• nitrogenation and heat treatment
• magnetic properties
• X-ray diffraction analysis

Details

• CRID: 1390001206307702912
• NII Article ID: 10002012877
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.43.1019
• ISSN: 18809014
• ISSN: 05328799
• NDL BIB ID: 4012527
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4012527
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed