Application of High Purity Alumina in Phosphor Powder

High-purity alumina has stable chemical properties, moderate high-temperature shrinkage performance, and good sintering performance; high conversion rate, low sodium content, and is widely used in industry, agriculture, etc., but how much do you know about its application in phosphors? Let's take a look together:

1. The high-purity alumina reflects the ultraviolet light passing through the phosphor layer, so that it continues to excite the phosphor and improves the luminous efficiency of the fluorescent lamp;

2. As a binder, high-purity alumina can improve the bonding strength between the phosphor and the glass tube, so that the phosphor does not fall off;

3. As a barrier layer for mercury diffusion, high-purity alumina can reduce the amount of mercury to a minimum and prolong the service life of the lamp.