The α-cordierite and β-spodumene glass-ceramics containing B2O3, P2O5, and/or TiO2 were produced in a bar shape by hot pressing and crystallization 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. This low density in the β-spodumene glass-ceramics would result from a possible premature crystallization which might hinder a completion of sintering of the matrix. The glass-ceramics without TiO2 showed slightly higher mechanical properties than those with TiO2. This difference would result from slightly higher density in the glass-ceramics without TiO2.
|Journal||Journal of Engineering and Applied Science|
|Publication status||Published - 1997|
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