Keywords: foam glass

THE INFLUENCE OF RAW MATERIALS ON THE PROPERTIES OF FOAM GLASS AND THE DEVELOPMENT PROSPECTS

https://doi.org/10.34031/2618-7183-2020-3-1-44-48
Abstract
This paper considers the influence of raw components on the properties of foam glass and the development prospects of its use. The aim of the work is to identify the development prospects of foam glass appliance based on the study of the influence of raw materials on its properties. The task is to study the effect of initial materials on the properties of foam glass and the application fields of foam glass products in detail. To solve the problem a theoretical analysis of the scientific and technical literature and articles is used as a research method. As a result of the study, the main components used in the production of foam glass, their influence on the properties of the ready-made material and the application fields of foam glass products are considered. The authors draw a conclusion that the use of foam glass, which can reduce the effect of electromagnetic radiation, and foam glass made using industrial wastes is prospective.
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A BLOCK OF THERMAL INSULATION MATERIALS WITH PROTECTIVE AND DECORATIVE COATINGS

https://doi.org/10.34031/2618-7183-2019-2-1-4-10
Abstract
Scientific and technological principles of alternative plasma technology for the production of two-layer heat-resistant glass-like decorative coating were developed. The compositions of the intermediate heat-resistant layer and the technology of its application to the surface of the enclosing block of foam glass are proposed. The optimal parameters of plasma melting of heat-resistant and decorative coating layers were determined. The influence of high-speed characteristics of plasma jet thermal melting on the formation of texture and performance of two-layer heat-resistant coating is established. The features of the formation of amorphous vitreous and glass-crystalline phases of a two-layer heat-resistant coating are presented. Using x-ray phase analysis, the features of the phase composition of different layers of heat-resistant coating, as well as the laws of formation of its structural elements are studied. Based on the analysis of significant experimental material, it was concluded that the formation of the upper amorphous layer with liquating regions and minor gas inclusions. The conducted researches allowed to reveal and justify the features of the structure of the layers lying under the amorphous liquating. It was found that the two-layer protective and decorative coating had high physico-chemical and physico-mechanical properties: adhesion strength to the matrix of the foam glass block-1.25 ± 0.05 MPa, microhardness-785 HV, heat resistance-122°C, acid resistance – 98.5%, alkali resistance – 95.4%.
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