Preparation of Mullite-Zirconia Composites from Glass Powder |
| |
| Authors: | R. McPHERSON |
| |
| Affiliation: | Department of Materials Engineering, Monash University, Clayton, Victoria 3168, Australia |
| |
| Abstract: | Glass powders with the composition mullite/5 wt% ZrO2, prepared by rapid solidification, were used to prepare a poly-crystalline ceramic by hot-pressing to 1040°C. The as-prepared structure consisted of a fine-grain-sized (∼0.1 μm) solid solution of ZrO2 in a tetragonal form of mullite. Heat treatment between 1300° and 1660°C resulted in a range of microstructures consisting of tetragonal ZrO2 particles dispersed in mullite. Transformable tetragonal ZrO2 was observed only after heat treatment at 1600°C. |
| |
| Keywords: | |
|
|
