Ultrafine Alumina Particles Prepared by Mechanochemical/Thermal Processing

J. Ding, T. Tsuzuki, Paul Mccormick

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    117 Citations (Scopus)


    Ultrafine alumina particles have been prepared by the mechanical milling and subsequent heat treatment of a mixture of AlCl3 and CaO. Heat treatment of the as-milled powder at temperatures above 350 degrees C and washing with water resulted in gamma-Al2O3 particles 10-20 nm in size. Single-phase alpha-Al2O3 was formed in the sample after heat treatment at 1250 degrees C. This study demonstrates a novel process for synthesizing nanoscale alumina particles.
    Original languageEnglish
    Pages (from-to)2956-2958
    JournalJournal of the American Ceramic Society
    Publication statusPublished - 1996


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