| Autors: MILANOVA, G. M., RANGELOV, R. K., PETROV, K. L., KANDEVA, M. K., ZAGORSKI, M. H. Title: INFLUENCE OF GRAPHITE PARTICLE SIZE ON MICROHARDNESS AND ROUGHNESS OF REFRACTORY COATINGS Keywords: casting, coatings, microhardness, roughness, graphite partic Abstract: The presented paper concerns the examination of four types of alcohol-based refractory coatings with one and the same viscosity with graphite particle sizes of 60 µm, 80 µm, 100 µm and 120 µm and with the same viscosity. Different particle sizes are obtained by grinding and the coating is applied by immersion in the suspension of sand matrix samples. Results about microhardness and roughness of the coatings are obtained. They show that as the size of the graphite particles decreases, the microhardness increases and the roughness decreases. The dependency of the microhardness on the particle size has an almost linear character, and the roughness is an increasing exponential function. References Issue
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Вид: пленарен доклад в международен форум, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus
