Baskevich O. Formation of transient metal amorphous alloys with phosphor at electro-pulse deposition.

Object - Physical regularities of the processed formatio of short range ordering of transien metal amorphous. Aim - Estabilishment of the regularities of amorphous and microcrystalline structure formation in the transient metal alloys with phosphor prodused by pulse electrodeposition. Methods - X-rays difraction, electron - microscopic, thermogravimetric, theory of X-ray scattering on the disorder system. The dissertation is devoted to the investigation of a short -range order, structure, thermal stability of amorphous and microcrystalline alloys of transient metals with Ni-P, Fe-P, Co-P phosphor produced by the method of electro-pulse deposition, to the establishment of the physical regularities of amorphous and microcrystalline structure formation in the transient metal alloys with Ni-P, Fe-P, Co-P phosphor on the parameters of pulse current and phosphor concentration in electrolyte solutions. For establishment of the mechanism of amorphous and microcrystalline structure formation in the alloys of Ni-P, Fe-P, Co-P, the experimental X-ray crystallographic and electron microscopic data as well as short-range order modeling by the proposed approximation procedure of the main peak profile of structural factor were used. As a result of modeling, it has been established that the short-range order of the amorphous alloys of Ni-P, Fe-P, Co-P consists of the clusters which structure is close to the polyhedrons of the most compact crystalline structures. Phase composition, thermal stability of alloys depending on the production conditions and composition have been established. Area of using: radio electonics and radio engineering.