Characterization of surface oxide layer of iron particles for magnetic recording II. Surface oxide layer of further oxidized iron particles in high humidity

Akio Makishima, Yukihiro Yamamoto, Kohji Watanabe

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    The surface oxide layer of additionally oxidized iron particles for magnetic recording in high humidity (90%) and at 60°C was examined by Mossbauer spectrometry. The mechanism of deterioration was concluded to begin with oxidation: the deterioration of the saturation magnetization (Is) of iron particles was caused by a deterioration of the Is of the surface oxide layer; later deterioration was caused by an increase in the amount of the oxide layer. The specific gravity of the surface oxide layer became gradually reduced during the oxidation.

    Original languageEnglish
    Pages (from-to)3189-3192
    Number of pages4
    JournalBulletin of the Chemical Society of Japan
    Volume63
    Issue number11
    DOIs
    Publication statusPublished - Nov 1 1990

    ASJC Scopus subject areas

    • Chemistry(all)

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