About the article
A.N. BOLOTOV, Dr. Sc., O.O. NOVIKOVA, Cand. Sc., V.V. NOVIKOV, Cand. Sc.
One of the stages of the formation of diamond-containing ceramic material is considered by the method of microarc oxidation of sintered billets from a diamond-aluminum mixture. Factors that determine the features of the process of electrochemical oxidation of parts from sintered aluminum powder with inclusions of metallized dielectric dispersed particles are revealed. The modes of material formation on workpieces of various bulk density and with varying percentage composition of the components are experimentally investigated. The ranges of the bulk density of the material, the degree of metallization of diamonds, and their concentration at which a diamond-containing ceramic material with optimal physical, mechanical and tribological properties are determined. The optimal technological conditions of oxidation were worked out to obtain the material with maximum thickness. An analysis of the morphological structure of the surface of the obtained material is given. The field of application of the obtained diamond-containing ceramic material as a tool for diamondforming processing of superhard materials in precision engineering and instrumentation is determined.
microarc oxidation, diamond-containing ceramic material, friction, wear.