Preparation method and use of green fluorescent transparent ceramic

A preparation method of a green fluorescent transparent ceramic, comprising the following steps:

• (1) weighing, according to a stoichiometric ratio, elements present in a chemical formula of Ca3-x-yCexAySc2-zBzSi3-mCmO12, in forms of oxides, carbonates or nitrates as starting materials;
• mixing the starting materials evenly to obtain a mixture;
• annealing the mixture;
• fully melting the mixture at a first temperature;
• cooling the mixture to obtain a transparent glass;
• annealing the transparent glass at a second temperature of 700-950° ° C.for 1-10 h to remove an internal stress of the transparent glass;
• (2) putting the transparent glass obtained in step (1) into a high-temperature furnace;
• holding the transparent glass at a third temperature of 1,000-1,200° ° C.for 0-10 h;
• raising the third temperature to a fourth temperature of 1,400-1,500° C.;
• performing a crystallization and a densification sintering on the transparent glass in air or vacuum to obtain a product;
• holding the product at the fourth temperature for 5-80 h, to obtain a fluorescent transparent ceramic;
• and
• (3) sequentially cutting, reducing and surface-polishing the fluorescent transparent ceramic obtained in step (2) to obtain the fluorescent transparent ceramic with a high quantum efficiency and an adjustable transmittance.