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RESEARCH OF MODES OF FORMATION
OF DIAMOND-CONTAINING
CERAMIC ABRASIVE MATERIAL BY THE METHOD
OF MICROARC OXIDATION
Authors: A.N. BOLOTOV, Dr. Sc., O.O. NOVIKOVA, Cand. Sc., V.V. NOVIKOV, Cand. Sc.
Abstract: 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.
Keywords: microarc oxidation, diamond-containing ceramic material, friction, wear.