RESEARCH LABORATORY OF MICROPLASMACHEMICAL AND ELECTRO PHYSICAL PROCESSES OF TREATMENT

          Ecologically harmless, low power-intensive, effective and economically expedient microplasmaspark methods of surfaces modification through various transmitting media in conditions of a controlled electric charge refer to quickly developing and widely used ones in industries, connected with repair and exploitation of high-loaded units and aggregates.

Main directions of the research works of the laboratory:

• development of theoretical and technological bases of materials modification by microplasmaspark methods in conditions of an electric charge being controlled in various media to form multifunctional high-adhesion coatings for the needed purposes;
• development of scientific approaches to a creation of new composite electrode materials on the base of powder mixture and oxide ceramics, carbide systems and intermetallide compounds, coatings with implanted structures;
• development of scientific principles to control processes of microplasmaspark treatment with a purpose of expansion of their possible applications;

• development of scientific approaches to make new composite electrode materials with high characteristics of wear resistance and a low friction coefficient and electrolytes compositions to form coatings with improved exploitation properties on power conducting substrates of any composition;
• optimization of methods of purposeful transforming a microstructure of products surface and of forming one component and multicomponent composite coatings on the base of powder mixtures and oxide ceramics, carbide systems and intermetalline compounds with interweaved structures;
• development of technologies of forming coatings for various purposes on the surface of products from cur-rent conducting materials by microplasmaspark methods and their mastering on enterprises of Belarus and abroad;

• Micro-arc oxidizing (MAO) (treatment in a liquid medium) - serves to form oxide-ceramic coatings on the base of thermodynamically stable oxides of metals with additives of spinell compounds on the surface of metal materials. A treatment is carried out in noncaustic alkali ecologically harmless solutions excluding the necessity in purifying utilizing devices. In the produced layers an adhesion to a substrate combines with hardness, a heat resistance- with electric isolating properties, wear resistance - with high anticorrosive characteristics.
• Microplasmaspark alloying with ultrasound modification (MPSA + USM) (treatment in air medium) is used for repeated restora-tion and a strengthening of any current conducting surfaces of a random shape and sizes, ensures a formation of high-adhesive coatings, alloying of a substrate by surface layer on the width up to 200mkm forming small crystal-line structures with an improved strength and plasticity in it, double and triple carbide systems in a spherical shape determining the highest degree of strengthening. Ultrasound modification results in homogenization and equalization of the stresses gradient in a crystal lattice of the material.

• MPSA+USM
  Manufacture of erosion-, wear- and heat-resistant sur-faces or combined layers with the needed complex of operating characteristics on the surface of metal products; motor industry and agricultural technique, strengthening, repair of parts of cars, motors, fuel sys-tems and hydrosystems; restoration and a strengthening of equipment, metal- and wood treatment tools, knives, belt and disc saws etc. By forging; they are used as an effective method of recycling with a simultaneous strengthening.
• MAO
  A heat protection, protection from high - temperature, salt and other kinds of corrosion, protection from attri-tion, dielectric barriers, decorative coatings and etc.; machine-, vessel-, air- and machine building; electron, chemical, biological petroleum production, textile, food industry; building, medicine, heat sink bases of micro-schemes; production of consumership goods; decorative and colour finishing; engine parts which are used under thermocycling loads.