Densification Behavior and Crystallite Growth in Alumina-YSZ Composites Sintered by Millimeter-wave Heating

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Densification behavior and crystallite growth were investigated for alumina-YSZ composites by examining sintering behavior under 28 GHz millimeter-wave radiation. Enhancement of sintering in the intermediate stage by millimeter-wave radiation was suggested from the analysis on densification behaviors for alumina-YSZ composites as well as alumina. These ceramic composites under millimeter-wave radiation have been proved to densify with suppressing crystallite growth of alumina, compared with those by conventional sintering method.


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