Investigation of microgranulated ZrO2-Y2O3 powders intended for heat-resisting plasma coatings

There have been carried out investigations of zirconium dioxide powders which were partially stabilized by yttrium oxide. The powders were produced by hydroxide coprecipitation with their subsequent granulating by freezing and further heat treatment. There have been determined phase composition, pycometer density, general porosity and heat-transfer coefficients of the ZrO2-Y2O3 powder materials having different contents of stabilizing addition. 6 refs.; 1 fig