Gusevyk P. Features of ultra-nonequilibrium metal-metal systems solidification from a melt and a vapor

The object is the impact of non-equilibrium phase formation processes on the structure and physical properties of the rapidly cooled samples. The aim is a comparative analysis of the features of structure formation and material physical properties. The alloys are obtained by the modernized three-electrode ion-plasma deposition and by quenching from the liquid state. Structural and diffraction studies are carried out using transmission electron microscopy, X-ray diffractometer and the X-ray installation with Debye chamber. Physical properties of the alloys are studied by plotting the temperature dependence of the electrical resistivity and magnetic measurement using a vibrating magnetometer. It is found that in Mn films there is metastable beta-Mn phase or depending on the cooling rate - gamma-Mn or the mixture alpha- and gamma-phases. It is demonstrated that energy increase of deposited atoms (from 20 to 200 eV) leads to the formation of metastable bcc-Bi phase. Ni films are characterized by the formation of metastable alpha-Ni phase with HCP lattice (under the low energy of atoms ~20 eV). It is found that the Bi films exhibit hysteresis properties due to the formation of alpha-Bi2O3 phase characterized by the magnetic ordering. The investigations results allow predicting the pre-defined physical properties of the samples obtained under non-equilibrium conditions. Application spheres are high magnetic materials and training courses.