情報記録用磁性材料 記録材用強磁性酸化物微粉末

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タイトル別名
  • Ferromagnetic Oxide Particles for Recording Materials.
  • キロクザイヨウ キョウジセイ サンカブツ ビフンマツ

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The conditions had been studied for the formation of ferromagnetic precipitates of MxFe3-xO4 (M = divalent metal ion, such as Fe2+, Zn2+, Co2+or Mn2+), BaFe12O19 and SrFe12O19 in the presence of aqueos media. We succeeded in preparing the needlelike xCoFe2O4(1-x)Fe3O4 and platelike 6xFe3O4(1-x) BaFe12O19 particles for magnetic recording materials. This paper describes the conditions for their formation and their magnetic properties at room temperature.

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