Structure of vacuum Cu–Ta condensates

Structure, Strength and Conductive Properties of Vacuum Cu-Ta Condensates CuTa

“…This tantalum content of ~ 0.4 at. %, as shown in [4], is necessary and sufficient to form segregations of tantalum atoms in the form of monoatomic adsorption layers at the grain boundaries of the copper matrix. In this state of grain-boundary segregations, strong interatomic bonds between tantalum and copper atoms are realized, which increase the cohesive strength of the grain boundaries.…”

“…They are synthesized mainly by powder and vacuum-plasma methods, realizing a wide range of structural states: from anomalous oversaturated solid solutions to heterogeneous systems with a micro-and nanometer dimension. These objects demonstrate high mechanical properties [2] and thermal stability of the initial nanoscale grain structure [3,4]. It should be noted that most of the research is devoted to materials that are obtained by powder methods [2 3, 5].…”

Influence of the thermal factor on the composition of electron­beam high­entropy ALTiVCrNbMo coatings

“…Owing to structural engineering, it became possible to create new types of materials. Such materials include pseudo-alloys [3], nanoperiodic composites based on various transient metals [4,5], solid solutions, oversaturated as a result of ion implantation, based on metals [6] or phases of implantation [7]. It becomes possible to stabilize metastable structural states by selecting conditions for the formation of materials [8].…”