Metastable phases formed by ion beam mixing of binary metal systems with positive heats of formation
作者： E. Peiner , K. Kopitzki
DOI: 10.1016/0168-583X(88)90741-0
关键词: Analytical chemistry 、 Irradiation 、 Thermal equilibrium 、 Standard enthalpy of formation 、 Miscibility 、 Ion 、 Metastability 、 Crystallography 、 Chemistry 、 Solid solution 、 Ion beam mixing
摘要: Abstract Multilayered samples of ten binary metal systems different overall compositions were bombarded at 77 K by 400 keV Kr + -ions. All have positive heats formation, which means that in thermal equilibrium the miscibility solid state is small. The analysed situ X-ray diffraction using a Seemann-Bohlin arrangement. experiments led to following results: - For Au-Rh, Cu-Rh, and Cu-Ir, whose components all fee structures, continuous series single phase metastable fcc solutions are produced ion beam mixing. Au-Ir, Ag-Ir, Ag-Rh, fee-structures, for Au-Os, Au-Ru, Ag-Os, Ag-Ru, where one component has other hcp structure, an extension terminal solubilities obtained irradiation. Amorphous formation occurred during irradiation Au 50 Ir , 70 Os 30 49 Ru 51 . dependence induced on magnitude heat discussed.
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