窒化鉄粉末の合成およびそれらの熱分解過程における常磁性-強磁性相変化  [in Japanese] Synthesis of Iron Nitride Powder and Their Phase Transformation from Paramagnetism to Ferromagnetism under Pyrolysis Process  [in Japanese]

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Author(s)

    • 北地 誠 HOKUCHI Makoto
    • 埼玉大学大学院理工学研究科機能材料工学専攻 Department of Functional Materials Science Graduate School of Science and Engineering, Saitama University
    • 柿崎 浩一 [他] KAKIZAKI Koichi
    • 埼玉大学大学院理工学研究科機能材料工学専攻 Department of Functional Materials Science Graduate School of Science and Engineering, Saitama University
    • 平塚 信之 HIRATSUKA Nobuyuki
    • 埼玉大学大学院理工学研究科機能材料工学専攻 Department of Functional Materials Science Graduate School of Science and Engineering, Saitama University

Abstract

The synthesis of Fe<SUB>2</SUB>N powder from FeC<SUB>2</SUB>O<SUB>4</SUB> powder and their thermal decomposition behavior were studied, and their magnetic properties were investigated. FeC<SUB>2</SUB>O<SUB>4</SUB> powder, which is a starting material of iron nitride, was prepared by the precipitation method in ethanol solvent (FeCl<SUB>2</SUB>aq.-H<SUB>2</SUB>C<SUB>2</SUB>O<SUB>4</SUB>⋅EtOH), consequently fine powder was obtained. Fe<SUB>2</SUB>N powder was prepared by the thermal decomposition of fine FeC<SUB>2</SUB>O<SUB>4</SUB> powder under NH<SUB>3</SUB> gas flow at 410°C, and the pyrolysis temperature was lower than that of FeC<SUB>2</SUB>O<SUB>4</SUB> made from water solvent (FeCl<SUB>2</SUB>aq.-(NH<SUB>4</SUB>)<SUB>2</SUB>C<SUB>2</SUB>O<SUB>4</SUB>aq.). When the Fe<SUB>2</SUB>N powder was heated in air and under Ar gas flow, the pyrolysis started at 150°C and 350°C, respectively. Fe<SUB>3</SUB>N single phase was obtained by pyrolysis of Fe<SUB>2</SUB>N powder at 400°C under Ar gas flow, and iron nitride transformation from paramagnetism to ferromagnetism was caused.

Journal

  • Journal of the Japan Society of Powder and Powder Metallurgy

    Journal of the Japan Society of Powder and Powder Metallurgy 49(2), 146-150, 2002-02-15

    Japan Society of Powder and Powder Metallurgy

References:  10

Codes

  • NII Article ID (NAID)
    10008007412
  • NII NACSIS-CAT ID (NCID)
    AN00222724
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    05328799
  • NDL Article ID
    6059949
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-274
  • Data Source
    CJP  NDL  J-STAGE 
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