Surface Crystallization of ZnO-Al2O3-SiO2 Glass
ZnO-Al2O3-SiO2 glasses with different surface conditions were surface crystallized by different heat treatment process. Differential thermal analysis (DTA), X-ray diffraction analysis (XRD) and scanning electronic microscope (SEM) were used to investigate the crystallization behavior of glasses, the crystalline components and microstructure of the as-got glass-ceramics. According to the DTA results, different heat treatment processes of surface crystallization on the glass were adopted. The SEM results show that surface conditions of glasses are important for the surface crystallization, and the thickness of surface crystalline layer increases with heat treatment time.
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
X. D. Li et al., "Surface Crystallization of ZnO-Al2O3-SiO2 Glass", Key Engineering Materials, Vols. 280-283, pp. 1655-1658, 2005