Theoretical and experimental evaluation of the properties of antifriction diamond-containing ceramics in a wide range of loads

elements as parts that are involved in direct frictional contact. Existing studies emphasize the complexity of forming oxide mineralceramic diamond-containing materials due to the diamond's sensitivity to oxidation at relatively high temperatures. The purpose of
this study is to evaluate the properties of antifriction diamondcontaining ceramics in a wide range of loads. During this study, a
composite diamond-containing ceramic material was obtained, and
a technology was presented, according to which, at the first stage of
obtaining the material, a workpiece of dispersed aluminum and
diamond is sintered, and then its surface layer is modified by the
method of microplasma electrolytic oxidation. The formed part
combines the physical and mechanical properties of the aluminum
matrix, the base, with the tribological properties of the ceramichardened layer containing partially graphitized dispersed diamonds.
As a result of the study, a positive example of using a friction pair
of diamond-containing ceramic material – ceramics as a working
unit of a colloid mill (disperser) was obtained. The developed model
allows synthesizing diamond-containing ceramic materials with
specified tribotechnical properties. The results of the modeling will
allow for a preliminary estimate of the area of stable operation of
tribounits, based on the value of contact pressure, before conducting
expensive full-scale tests.