ABSTRACT
The solutions to engineering tasks by applying the methods of industrial electrodynamics can be divided into several stages. The objective of industrial or engineering electrodynamics, after all, is the design, that is, the creation of new structures. Among the many conducting materials, the most important, from the design point of view, are the solid-state materials and among them—the metals. In constructional problems, an important role is played by the material’s coefficient of thermal expansion, especially at cooperation of parts made of different metals, for instance, copper rods in iron slots of electric machines. Metals have crystal structure, that is, ions of metals are distributed in space in an ordered mode. The high thermal conductivity of metal conductors is connected with their electrical conductivity. The mechanical properties of metals to a large extent depend on their crystallo-graphic structure and temperature.
