La-doped Li2O–Al2O3–SiO2 (LAS) glass-ceramics were prepared solid phase reaction.Their crystallization,morphologies and properties
were investigated.The crystallization temperature of LAS glass-ceramics decreased due to the La2O3 addition. For the La-doped LAS glass,the
β-quartz solidsolution(s.s.) was initially formed, and then the β-quartz s.s. transformed to β-spodumene at higher temperature. The La2O3
addition played a role of network modifier in the LAS glass altering their network structure. With increasing the La2O3 content, the flexural
strength decreased,and the thermal expansion coefficient increased.