%0 Journal Article %T INVESTIGATIONS OF DENSITY AND POROSITY OF COATINGS MADE OF CERAMIC-POLYMERIC OR COMPOSITES WITH QUASI-CRYSTALS OBTAINED WITH GAS-DETONATION METHOD AND METHOD OF GAS-DYNAMIC SPUTTERING %A Sil'chenko, O.B. %A Siluyanova, M.V. %A Hopin, P.N. %K quasi-crystals, coatings, density, porosity %J Bulletin of Bryansk state technical university %D 2020 %N 2020 %P 7 %I Bryansk State Technical University