Abstract. Biocompatible calcium silicophosphate glassceramic coatings for titanium on the base of glasses in R 2 О-RO-RO 2 -R 2 O 3 -P 2 O 5 -SiO 2 system have been obtained. The influence of crystallization ability and roughness of experimental coatings on their surface free energy has been established. The use of titanium implants with applied apatite-containing glass-ceramic coating will significantly increase biocompatibility of the prosthetic implant and will reduce the time of its union with the bone.

Prospects for development of glass-ceramic materials on the lithium aluminosilicates base in order to increase the reliability of armor protection elements have been analyzed. Compositions of lithium aluminosilicate glasses with low content of lithium oxide have been developed, spodumene glass-ceramic materials were obtained on their base in conditions of low-temperature thermal treatment. Formation of structure of glass-ceramic materials based on model glasses after thermal treatment has been investigated and the influence of phase composition on mechanical properties has been established. It was determined that the developed glass-ceramic materials are feasible for the application against the action of high-energy munitions with significant penetrating ability, especially when used in combination with ceramic elements.

Viability of developing bioactive glassceramic coatings on titanium alloys as dental implants with short terms of fusion with bone tissue has been substantiated. Features of formation of calcium silicophosphate glasses on initial stages of nucleation have been studied. It has been established that the presence of sybotaxic metaphosphate and hydroxide groups in glass melt and formation of crystalline phase nuclei through spinodal separation will allow formation of strengthened structure of vitreous material containing hydroxyapatite and fluorapatite in conditions of short-term lowtemperature thermal treatment. Developed glass-ceramic materials can be used as a base in obtaining resorptive strengthened glass-ceramic coatings on titanium alloys for dental implants.

Relevance of the development of high-strength glass-ceramic coatings obtained by resource-saving technology for protective elements has been established. Structure formation mechanism in magnesium aluminosilicate glasses during heat treatment has been analyzed. Selection of the system was substantiated, model glasses and glass-ceramic materials on its base have been developed. Patterns of structure regularity and formation of the phase composition of glass-ceramic materials during their ceramization have been investigated. It was established that the presence of crystalline phase of mullite after melting leads to formation of the primary crystals and allows the formation of the fine crystalline structure under conditions of the low-temperature heat treatment at the nucleation stage. Developed high-strength glass ceramic materials can be used as a base in creating protective elements for special-purpose vehicles by energy-saving technology.

The aim of this work is developing a methodological approach to obtaining of bactericidal glazes for ceramic tiles. In this paper were identified the factors that determine the necessity of the development and implementation of bactericidal ceramic materials to protect public places. The most common methods of increasing biological resistance to the materials are described, namely: impregnation or surface treatment of materials with bactericidal liquids, regulation of materials surface properties, or injection of a bactericidal agent. The effect of the nature and particle size of the agent on its bactericidal properties are described. The main stages of the development of biocidal glass coatings (glazes), are identified, which include: the choice of a bactericidal agent and a glass matrix, a comprehensive assessment of the structure, physicochemical and service properties of the glaze and analysis of microbiological standards for evaluating the effectiveness of the inhibitory effect of glass coatings. It was established that existing methods for evaluating the bactericidal action should be adapted in accordance with existing sanitary standards for the operation of ceramic tiles. In this regard, to simulate the infection contamination of glass coatings, it is necessary: firstly, to use Escherichia coli as a test bioculture and to determine the range of permissible concentrations of colony forming units, and secondly, to use a qualitative diffusion method for migrating compounds and quantitative (aerosol and counting) methods for covalently linked bactericidal agents. Taking into account the constantly increasing anthropogenic environmental contamination, the toxic effect of bactericidal agents on living organisms, the biological activity of metals in the human body and their effect on the properties of glazes, it was determined that the oxides Ca, Mg, Zn, Ti, Cu, Cr, Mn, Ni are optimal biocidal agents as well as some of their salts. A methodological approach was developed that allows the development of prolonged-action bactericidal glazes for ceramic tiles under epidemiological threats. Keywords: glaze, ceramic materials, bactericidal agents, pathogenic microorganism.