The estimation of the dependence of anode potential of the temperature and current density. It is established that the activation energy of the anodic oxidation process HORTA, HORTA-I1 and OITA decreases with increasing potential, which corresponds to the limiting stage of charge transfer. The activation energy of the anodic process refers to the collective processes of transformation of the catalytic coating and anodic oxidation of the chloride ions. The latter process limits the adsorption of atomic chlorine, and the increase in activation energy is correlated with increased corrosion resistance. The dependence of the activation energy of from the content in the catalytic layer of iridium has an extreme character. The maximum is reached when the content of iridium 60-70%.
Keywords: ORTA, ORTA-I1, OITA, activation energy, anodic oxidation, adsorption of chlorine, sodium hypochlorite, chlorine, charge transfer, a mixed oxide, electrode potential
An algorithm for the control laws synthesis for boundedly indeterminate nonlinear n-th order plants with a mathematical model in normal form and arbitrary relative order is proposed. Moreover, said plants may have an unstable state of equilibrium, and their output matrix may contain right eigenvalues. The proposed synthesis algorithm is based on the application of the combined control principle with respect to the n-th state variable derivative. And its sought for law of change is determined from the desired trajectory equation of the corresponding automatic control system by means of evaluating the state variables of its object.
Keywords: plant, uncertainty, nonlinearity, law control, synthesis
Effect of water-soluble polymers additive and surface treatment on particle size distribution are shown in this article.
Keywords: electrolytic copper powder, water-soluble polymer, polyvinylpyrrolidone, polyacrilamide, electropolishing, atomic force microscopy
In this article methods of copper ultrafine powders stabilization from agglomeration and aggregation by water soluble polymer in process of production by electrolysis on vibrating cathode, as well as their effect on physical and mechanical properties of polymer composites.
Keywords: ultrafine powders, stabilization, friction coefficient, wear, structure of composite materials