Morphological Stability of the Solid–Liquid Interface during Melt Crystallization of Ca1–xSrxF2 Solid Solution

Аннотация

Proceeding from the phase diagram of the CaF₂–SrF₂ system, the stability of crystal–melt interface of solid solution against constitutional supercooling has been calculated. When comparing the stability function F(x) calculated curve with the results of single crystals growing by the Bridgman method, the interdiffusion coefficient of cations in melt was estimated to be D > 2.4 × 10^–4 cm²/s.