2014 Issue №4

In this paper were investigated the change of parameters of structures of thin film during ion implantation. Thickness of thin films before and after ion implantation were investigated by X-ray reflectivity. Also, crystal structure, average crystallite size and lattice constant were investigated by X-ray diffraction. The possibility of using ion implantation technique as method of changing grains size in structures was demonstrated.

This paper presents the results of studies of the parameters of optical components of a glassceramic material CO-115 by X-ray diffractometry. The possibility of technological precision quality control glassceramic parts using X-ray diffraction methods. The direct dependence of the temperature coefficient of linear expansion of the integrated intensity of the X-ray diffraction peak at the glassceramic.

Two methods of formating Heusler alloy Ni-Mn-In thin filmsby pulsed laser deposition were developed — two-lasers co-deposition and deposition in low argon pressure. Structural and magnetic properties of grown samples were investigated.

In this work were investigated surface and electrophysical properties of multilayer thin film structures based on Si/Ag, grown by Ion-Plasma Deposition method. There were developed and optimized method of structure formation, which consist of silver clusters in silicon medium. Current-voltage curves were observed on prepared structures and demonstrate resistive switching behavior.

This paper presents the scope of challenges which are faced in development and manufacturing of the cathode-compensator dedicated for micro-SPTs, and possible ways of how to overcome them. As compared to standard models, such a cathode shall be smaller in dimensions, shall have a lover propellant flow rate, as well as lover heater power and power consumption when self-operated; and it shall be able to operate in the current range of 0.3…1A or lower.

The results of investigations of relative erosion at different modes of the stationary plasma thruster operation are presented herein. The optimal parameters of thruster operation mode ensuring minimum erosion of the discharge chamber walls are defined herein.

Criteria of rationality of degree of multifunctionality of the technical park providing functioning of park of equipment are offered. Criteria are developed taking into account features of functioning of system of higher level of hierarchy, than the system providing functioning of separately taken technical products.

The paper includes the thermal calculation of the anode gas distributor in Stationary Plasma Thruster (SPT) discharge system made with SolidWorks Software, that allows to determine with sufficient accuracy the model’s sensibility vs. variation of the different parameters. The calculation can define the minimum area of fusion penetration between anode’s components during braising in order to obtain the thermal picture of the item design.

The theoretical method of calculation of orientation of particles in a flat bulk layer from not deformable particles of identical any form is offered. The method is illustrated for a layer from isosceles triangular prisms of a constant thickness.