Abstract
The crystallization behaviour of YSiAlON glasses with and without ZrO2 additives, prepared by melting at 1700°C, were studied by means of differential scanning calorimetry, scanning microscopy and X-ray powder diffraction analysis. The optimum nucleation temperatures were determined to be Tg + 65°C and Tg + 50°C for the ZrO2-free and the ZrO2-containing glass, respectively. The crystallization of the glasses was found to be dominated by the surface mechanism of nucleation and growth. The added zirconia acted as a growth modifier rather than a nucleating agent.
| Original language | English |
|---|---|
| Pages (from-to) | 1253-1262 |
| Number of pages | 10 |
| Journal | Journal of the European Ceramic Society |
| Volume | 16 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1996 |