TEM analysis of grain boundary phase in Mn-Zn ferrites

Takafumi Satoh, Etsuo Otsuki

    研究成果: Article査読

    1 被引用数 (Scopus)


    A control of nano-structure in sintering process is necessary to decrease the power loss of Mn-Zn ferrites. The purpose of this paper is to investigate the forming process of nano-structure during sintering as well as the structural change of spinel matrix and grain boundary which are affected by the oxygen partial pressure of sintering atmosphere by using High-Resolution Transmission Electron Microscopy (HRTEM). As a result, it was revealed by the TEM images (bright, dark-field and lattice-fringe images) and the electron diffraction analyses that the thickness of the grain boundary layers was found to increase with increasing oxygen partial pressure of sintering atmosphere. And the reduction of power loss by adding SiO2 and CaO is thought of due to the formation of highly resisitive grain boundary layers.

    ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
    出版ステータスPublished - 1996 12

    ASJC Scopus subject areas

    • 機械工学
    • 産業および生産工学
    • 金属および合金
    • 材料化学


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