Crystallization paths and microstructure formation in ternary oxide systems with stoichiometric compounds

摘要

The problems of computer model engineering for a phase diagram of Ca{cyrillic}O-SiO_2-Al_2O_3 system are considered. The crystallization path and the formation of microconstituents in phases assemblage are analyzed for the surfaces of CaO, 3CaO?·SiO_2 and 3CaO?·Al_2O_3 primary crystallization. Two-dimensional, one-dimensional and zero-dimensional concentration fields were formed by the surfaces projection on the Gibbs triangle. Some one-dimensional and zerodimensional concentration fields have no individuality and their microconstituents are the same as within the neighbor zero-dimensional and two-dimensional fields. The crystallization stages for given compositions are illustrated by the vertical and horizontal mass balances.