Effect of SiO2 Nanoparticles and Soluble Silicate on the Composition and Properties of Oxide Layers Formed by Microarc Oxidizing on Magnesium Mg96

• DOI: 10.1007/s11041-019-00391-5
• Publication Date: 2019-10-15T10:53:05Z
• Authors: M. M. Krishtal; P. V. Ivashin; A. V. Polunin; E. D. Borgardt; P. A. Glukhov
• Keywords: 02 engineering and technology; 0210 nano-technology; 3. Good health

Oxide layers deposited on magnesium by microarc oxidizing with introduction of different silicon-containing components, i.e., nanoparticles of SiO2 and Na2SiO3 sodium metasilicate, into the electrolyte are studied. The effects due to individual and joint use of these substances as components of the electrolyte are compared. It is shown that the best wear resistance of the oxide layers is provided after addition of SiO2 nanoparticles into the electrolyte, and the best corrosion resistance is obtained due to joint introduction of SiO2 nanoparticles and sodium metasilicate. The mechanisms of interaction between SiO2 nanoparticles and the forming oxide layer are suggested.