金属鉄とＦｅＯ（ＯＨ）を原料としてメカノケミカル法で作製したマグネタイト粉末のキャラクタリゼーション

• 古池 正史

  茨城大学大学院理工学研究科

• 徳満 和人

  東京大学生産技術研究所

• 阿部 修実

  茨城大学大学院理工学研究科

書誌事項

タイトル別名

• Characterization of Mechanochemically Synthesized Magnetite Powders from Fe and FeO(OH)

抄録

Influences of mixing-grinding conditions on the properties of magnetite powders synthesized from the metallic-iron and hydrated iron [III] oxide powders in organic liquids containing hydrogen peroxide were investigated. The calcination products were characterized by X-ray diffractometry and ⁵⁷Mössbauer spectroscopy. The yield of magnetite increased with the milling time and revolution frequency. The synthesis of magnetite powder was almost complete at 300rpm for 5 hours. After calcination at 773K in Ar, calcination product γ-(Fe^III)_A(Fe^II_0.58^III_1.28)_BO₄, was highly non-stoichiometric compound. The degree of non-stoichiometry increased with the yield of magnetite. For the calcinations in Ar, the degree of non-stoichiometry decreased by the reaction with residual iron. The addition of H₂O₂ suppressed the reaction of Fe and FeO(OH) to form magnetite.

収録刊行物

• 粉体工学会誌

  粉体工学会誌 42 (6), 419-425, 2005

  一般社団法人 粉体工学会

キーワード

• Magnetite
• Non-stoichiometry
• Mössbauer spectroscopy
• Lattice constant

詳細情報

• CRID: 1390001204511199616
• NII論文ID: 130003777923
• DOI: 10.4164/sptj.42.419
• COI: 1:CAS:528:DC%2BD2MXlvFerurY%3D
• ISSN: 18837239
• ISSN: 03866157
• ISSN: http://id.crossref.org/issn/03866157
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可