PHASE-SEPARATION AND CRYSTALLIZATION OF CHALCOGENIDE GLASS-FORMING SYSTEMS

This paper deals with the experimental results associated with the pha se separation, nucleation and crystallization of chalcogenide glasses. Experiments demonstrate that the phase separation may be affected by small amounts of additives. It has been found that some chalcogenide g lasses could be converted into glass-ceramics without phase separation . The different mechanisms of nucleated crystallization of chalcogenid e glasses are discussed and proposed.