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 |
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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 |