The impact of the mechanical properties with rare earth elements on the black shale glass-ceramic

The process of preparation of glass ceramics from black shale is briefly described in this paper. ICP-MS analytical method is used to obtain glass-ceramics REE content, RE eigenvalue and distribution model. It shows that rare earth elements (Ce, etc) are relatively concentrated in glass ceramics. It´s proved in a series of tests that the flexural and compressive strength of glass-ceramics is superior to marble and granite because of traces REE containing in glass-ceramics. In addition, the results of scanning electron microscopy tests show that REE are as main factor affects the crystallization temperature and color of glass ceramics.