Mechanical properties of α-cordierite and β-spodumene glass-ceramics prepared by sintering and crystallization heat treatments

摘要

the α-cordierite and β-spodumene glass-ceramics containing B_2O_3, P_2O_5, and/or TiO_2 were produced in a bar shape by hot pressing and crystalliza- Tion heat treatments of glass powders. Various physical properties of the glass- Ceramics were examined. The α-cordierite glass-ceramics showed intrinsic high Mechanical property values, whereas the β-spodumene glass-ceramics showed Rather low ones. The relatively low density in β-spodumene glass-ceramics would Lead to the low mechanical property values.