Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2017 - September 06, 2017
In ceramic molding, a paste composed of the ceramic particles and binder is infiltrated into the mold. Fabricating a microstructure by the conventional molding is difficult because of aggregation of the particles. The aggregated particles prevent the paste from being infiltrated into the narrow channels in the mold. To fabricate the ceramic microstructure by molding, the mechanism of the infiltration into the microholes by applying centrifugal force on the paste should be clarified. The centrifugal force is expected to reduce the aggregation. We infiltrated yttria-stabilized zirconia (YSZ) nanoparticles into microholes with various centrifugal acceleration. We observed the cross sections of the microholes before and after the centrifugation by scanning electron microscopy. The YSZ particles are infiltrated only after the centrifugation. The infiltrated area fraction of the YSZ particles is larger with larger centrifugal acceleration. Consequently, we successfully demonstrated that centrifugation is effective in infiltration of ceramic nanoparticles.
