Dissolution rate of silicon nitride ceramics into molten CaO-Al_2O_3-SiO_2 slags

摘要

The dissolution rates of silicon nitride (Si_3N)4) ceramics into CaO-Al_1O_3-SiO_2 slags were investigated by using a rotating Specimen method in the temperature range of 1773-1873 K. Dissolution rates in the present study increased as the revo- Lution speed and temperature increased and decreased as The SiO_2 content of the slags increased. The nitrogen content Of the slags increased after the Si_3N_4 ceramics had been Immersed into them.