Pure Tetragonal Zirconia Research Articles

ChemInform Abstract: PREPARATION OF ALUMINA‐ZIRCONIA POWDERS BY EVAPORATIVE DECOMPOSITION OF SOLUTIONS

AbstractMit Hilfe eines modifizierten EDS‐Verfahrens werden feinkörnige, homogen verteilte Al2O3/ZrO2‐Pulver dargestellt, die gegen eine Phasenum‐ Wandlung des ZrO2 beständig sind.

Preparation of Alumina‐Zirconia Powders by Evaporative Decomposition of Solutions

Fine‐grained, homogeneously dispersed alumina‐zirconia and zirconia powders were prepared by evaporative decomposition of solutions. The pure metastable tetragonal zirconia powder transformed to the monoclinic form when it was heated to 1150°C. The zirconia in the alumina‐zirconia powder, which was also in the tetragonal form, did not transform when the powder was heated to 1150° C. This result is explained in terms of inhibition of coarsening of the zirconia grains by the alumina particles.