Duchenko O. Phase formation and reaction kinetics in the Ni-Bi, Ni-Zn and Co-Zn binary systems

Research object: Phase formation and reaction kinetics in the Ni-Bi, Ni-Zn and Co-Zn binary systems. The aim has been: to reveal the quantity and sequence of formation of intermetallic layers, their phase composition and growth rate and then, by comparing of the found regularities with those predicted by existing theories, to confirm or dispose their certain postulates. The method of reaction couples has been used. The samples were annealed in electric furnaces. The phase and chemical composition of the layers have been determined by means of metallography, X-ray and electron probe microanalysis. The results of the investigation can be used for further development of theory of reaction kinetics, as well as in physical chemistry of metallic systems and materials science.