The effect of Al 2 O 3 substitution on the thermal expansion behavior of a Li 2 O‐ZnO‐SiO 2 glass‐ceramic was investigated using differential thermal analysis, X‐ray diffractometry, and dilatometry. The coefficient of thermal expansion of the original Al 2 O 3 ‐free glass‐ceramic measured between 20° and 900°C decreased from 12.4 × 10 ‐6 °C ‐1 to 6.3 × 10 ‐6 °C ‐1 with Al 2 O 3 substitution for ZnO up to 11 wt%. The results were correlated to the changes in the phase assemblage with Al 2 O 3 addition.
No takes yet. Share an insight, caveat, or question.
Demirkesen et al. (1999) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: