Modeling of the Bi 2 O 3 ·SiO 2 Melt Cooling Process and the Products of Melt Solidification under Various Conditions

— Cooling of a melt with the composition Bi 2 O 3 ·SiO 2 and the metastable phase Bi 2 SiO 5 under various conditions has been studied by computer simulation with ProCAST software. Using previously reported thermophysical characteristics (thermal conductivity, heat capacity, and density) of the melt and metastable phase and the experimentally determined thermal diffusivity of the metastable Bi 2 SiO 5 compound in the range 299–700°C, we have evaluated the cooling rate, which has been shown to agree well with the experimentally determined one, confirming that the assumptions made in our simulations are quite adequate.