HIGH-POWER FLUORESCENT GLASS CERAMIC FOR ILLUMINATION AND DISPLAY, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

摘要

A high-power fluorescent glass ceramic for illumination and display. The fluorescent glass ceramic has a composition of (1-x)A:xB, wherein x is the percentage of B by weight, and x ranges from 1 to 40%; A is glass matrix with a composition of aSiO₂-bA₂O-cZnO-dMO, wherein a, b, c, and d are all molar percentages, a + b + c + d = 100, A in A₂O represents an alkali metal, M in MO represents alkaline-earth metal; and B is a YAG:Ce³⁺ phosphor. In the fluorescent glass ceramic, the glass matrix has a low remelting temperature and easily available raw materials with low costs, and is green and pollution-free. Combined with the YAG:Ce³⁺ phosphor, the glass matrix features high light conversion efficiency and excellent heat aging resistance.