Leucite microcrystalline glass, preparation method and application thereof

The invention belongs to the field of medical materials, especially to leucite microcrystalline glass and its preparation method and application. The method comprises the following steps: firstly calcining raw materials such as SiO2, Al2O3, K2O, B2O3, etc. for the first time to obtain leucite baked porcelain blocks, crushing, ball-milling by a wet method, drying and sieving to obtain leucite baked porcelain powder, tabletting the above prepared leucite baked porcelain powder and calcining so as to prepare the leucite microcrystalline glass. Grain size of leucite crystal grains in the leucite baked porcelain powder is about 1 micron. By small grain size, strength of the leucite microcrystalline glass can be effectively raised. After tabletting and calcining, the leucite microcrystalline glass has high strength and good transmittance. The invention provides a new method for preparation of the leucite microcrystalline glass.