STABILITY OF CRYSTALS AGAINST MELTING AND VITRIFICATION

摘要: The long-range atomic order of crystalline alloys can be destroyed by a variation temperature resulting in regular melting or non-equilibrium solid state processing glass formation. destabilization the lattice and evolution amorphous phase is triggered variety methods including, for example, alloying beyond equilibrium limit, mechanical deformation, irradiation, thermal annealing thin film superlattices application high pressures. Under local conditions, crystal-to-glass transition exhibits similar features as melting, whereas under non­ conditions catastrophic vitrification occur at To-temperature extended into forming regime. It shown that randomly frozen-in impurities defects cause rounding first-order to an isentropic triple point between supersaturated crystal, undercooled liquid crossover ideal lines.