Institution: | * The Nishi Tokyo University, 3-11-19 Seijo, Setagaya, Tokyo 157, Japan † Chichibu Cement Co. Ltd, Kumagaya, Japan |
Abstract: | Since 1980 much attention has been payed to hydrothermal processing. There are several papers related to hydrothermal fine Zirconia powders by authors 1), 2), 3) and 3). The authors 3) prepared ZrO2 and Y2O3-ZrO2 powders under hydrothermal conditions. Several methods were used to prepare fine ZrO2 powders under hydrothermal conditions: hydrothermal precipatation, hydrothermal crystallization, hydrothermal oxidation, hydrothermal decomposition, hydrothermal synthesis, hydrothermal anodic oxidation, RESA (reactive electrode submerged arc) process, etc. This paper describes hydrothermal precipatation processing of ZrO2 and Y-ZrO2 powder. |