A.M. Borisov, B.L. Krit, V.B. Ludin, N.V. Morozova, I.V. Suminov, D.I. Tsyganov, A.V. Apelfeld

Microarc oxidizing in the electrolytes containing weighed powders of various degree of dispersion and the nature, represents the separate direction in the field of plasma-electrolytic technologies which actively recently develops. The formation of MDO-coverings in such electrolytes-suspensions has the special mechanism which influences not only on their structure and properties but also the speed of their formation. In this review an experience of plasma-electrolyte methods using for characteristics improvement of valve metals applied to manufacturing of medical appointment objects is systematized. Comparison of surface properties after modifying in «standard» for this method silicate and alkaline electrolytes and in electrolytes-suspensions is carried out. The phenomenological model of the forming mechanism of the MDO-coverings created in electrolytes-suspensions is presented, the characteristics of electrolytes and coverings are provided. Results of own researches of structure of the MDO-coverings conducted by the method of nuclear backscattering spectrums modeled by the original NBS program are described.

 

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