Evolution of Acid–Base Properties of the Surface of Zinc Oxide Powders Obtained by the Method of Grinding in an Attritor

The evolution of the acid–base properties of the surface of zinc oxide powders during mechanical grinding in an attritor is studied. The study is performed using the methods of the adsorption of acid–base indicators and X-ray photoelectron spectroscopy. Correlations between the results obtained by these methods are established. It is shown that a monotonic decrease in the particle size of ZnO powders is accompanied by a nonmonotonic change in the surface acid–base properties.     

The principle of similarity of trajectories for the motion of charged particles with different masses in electric and magnetic fields that are homogeneous in Euler terms

An electric field with potentials that is homogeneous in Euler terms satisfies the principle of similarity of trajectories that was derived by Yu.K. Golikov. Such fields are a useful tool for the development of electron and ion optical systems with unique properties. In this paper, the principle of similarity of trajectories is generalized to the case of a magnetic field and a combined electric and magnetic field that are homogeneous in Euler terms.     

Creating Lithographic Pictures Using Faceted Zinc Oxide Microparticles on a Silicon Substrate

Lithography techniques compatible with silicon technology have been developed within the hydrothermal method. Topological layouts were formed by faceted microcrystals with the developed surface. The prospects for implementing new hierarchical structures are of special interest.     

Nanolithographic self-assembly of colloidal nanoparticles

Technical Physics Letters - Methods of nanolithographic self-assembly of colloidal nanoparticles have been created, which are promising for the development of fractal nanolithography.     

Reduction of iron oxides during the pyrometallurgical processing of red mud

The results of experiments on the use of red mud in traditional pyrometallurgical processes and plants are presented. The red muds of the Ural Aluminum Plant (UAZ, Kamensk-Ural’skii) and the Alyum Plant (Tul’chiya) are shown to have similar phase and chemical compositions. The morphology of the iron oxides in red mud samples taken from mud storage is studied by Mössbauer spectroscopy. It is found that the metallic (cast iron) and slag phases that form during the pyrometallurgical processing of red mud by melting with a carbon reducer in the temperature range 1200–1500°C are clearly separated. Cast iron can be used in steelmaking, and the slag can be used for hydrometallurgical processing and extraction of nonferrous metals and for the building industry after correcting its composition.     

Magnetic cores made of an amorphous tape for the induction accelerator

It is proposed to use induction cells with cores wound by a thin tape made of an iron-based amorphous alloy in the linear induction accelerator for flash radiography. The comparison of pulse magnetization characteristics of the toroidal cores made with layer insulation and without it is given. The results of switching on of the injector based on the manufactured cores are presented.     

Chemical Binding of Carbon Dioxide on Zinc Oxide Powders Prepared by Mechanical Milling

Inorganic Materials - Based on X-ray photoelectron spectroscopy and X-ray diffraction data for zinc oxide powders prepared via mechanical milling in an attritor, we have identified inherent...