AlPO_4-Containing Glass-Crystalline Materials in the System Li_2O-Al_2O_3-P_2O_5

摘要

Publication concerns the crystallization of glasses in the system Li_2O-Al_2O_3-P_2O_5. The aim of this study was to determine the area of the occurrence of glasses in the system Li_2O-Al_2O_3-P_2O_5 to examine their tendency for crystallization of AlPO_4 phase and others in the process of thermal treatment. Applying the method X-ray diffraction the crystallization mechanism of AlPO_4 (cristobalite and tridymite form) and other accompanying phases, and the influence of the addition of small amount of SiO_2 on the crystallization of these glasses was examined. The structure of glasses and glass-crystalline materials obtained were defined by means of infrared spectra. AlPO_4 glass-crystalline materials have statisfying resistant properties to use them as coats on steel.