| Glasses containing iron oxide (12-15 wt%) have been prepared based
on thermal power plant wastes, and their crystallization mechanism
studied with the help of XRD, DTA and TEM. In the initial stages of
crystallization, phase separation took place which led to the formation
of hedenbergite. The glass-ceramic material obtained under
optimum conditions had high chemical resistance, microhardness of
7400 MPa and thermal stability. The final product can be recommended
for workshop floorings and storage vessels in chemical
industries. |