Abstract

Li2O–Al2O3–SiO2 (LAS) glasses and glass-ceramics with co-doping ZrO2/P2O5 were prepared by the traditional melt quenching method and nucleation-crystallization process in this study. The effect of ZrO2/P2O5 co-doping on crystallization behavior, structure, and properties of the LAS glasses and glass-ceramics was discussed. The results show that the LAS glass ZP/0.5 exhibits better properties as compared to the other LAS glasses. As for the LAS glass-ceramics, ZrO2/P2O5 with mass ratios of 0–1 have little effect on the crystallization behavior. However, with the ZrO2 content increases to 4 wt% (ZrO2/P2O5 with a mass ratio of 2), an effective crystallization promotion behavior is found. Under a crystallization temperature of 950 °C, the LAS glass-ceramic ZP/2 shows improved properties, including lower density (2.526 g/cm3), higher Vickers hardness (7.23 GPa) and bending strength (94 MPa), and excellent acid and alkali-resistance (4.12 and 5.32 × 10−5 g/cm−2 h).

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