Papers by Author: R.A. Andrievski

Abstract: Features of hydrogen nanostructure synthesis are described as applied to metals (Mg and Pd) and intermetallics (Mg2Ni, FeTi and LaNi5). Attention is focused on the high-energy ball milling as a universal method for hydrogen nanostructure preparation. The effect of crystallite size, absorption/desorption properties of Pd - H2, Mg2Ni - H2, TiFe - H2 and Mg - H2 systems are characterized in detail. Structural features and some physical properties of nanohydrides studied by different independent characterization methods are considered.

Abstract: Nanostructured films are considered as a characteristic (distinctive) type of consolidated nanostructured materials (NMs). Their benefits as compared to other types of NMs are described in detail. Some new interesting results related to mechanical and physical properties of nanostructured films based on high-melting point compounds (nitrides, borides and carbides), metals, and oxides are discussed. Data on film hardness, type of deformation, effect of additional magnetic field at deposition of films, properties of twins, conductivity, coercivity, and the Hall coefficient are reported and commented.

Abstract: Size effects in nanostructured (nanocrystalline, nanophase or nanocomposite) materials (NMs) and their stability are of great importance for fundamental considerations and modern practice. The size effect peculiarities in NMs are analyzed and the complex influence of grain size and other factors on NM properties is emphasized. New approaches in the development of thermostable NMs are considered with a special attention to the importance of the reproducibility of NM structures and properties.