1. Preparation materials: strontium europium aluminate doped phosphor and appropriate binder. The binder can be organic or inorganic, such as polyvinyl alcohol (PVA), polyacrylic acid (PAA), polyvinyl alcohol-polyvinyl acid * * * polymer, etc.
2. Mixing: mixing the phosphor doped with strontium aluminate and the binder. They can be evenly mixed by mechanical stirring or ball milling to ensure that the binder is evenly dispersed in the phosphor.
3. Molding: The mixture can be molded into required blocks by pressing, injection molding or die casting. In the molding process, it is necessary to pay attention to the uniform application of pressure to ensure uniform density.
4. Sintering treatment: sintering to form blocks. Sintering is a process carried out at high temperature, with the purpose of forming bonds between powder particles through thermal decomposition and recrystallization of binder. The sintering temperature will vary according to the characteristics of the specific material and binder.
5. Temperature control: The control of sintering temperature is very important. Too low temperature may lead to unstable bonding, while too high temperature may lead to excessive sintering or melting of powder. Generally, the temperature is controlled according to the sintering curve and thermal properties of a specific material to ensure a suitable sintering process.