Metal-oxide nanostructutred coatings obtained by microtribological method
Muktupavela, F.; Bakradze, G.; Misnovs, A.; Stolyarova, S.; Tamanis, E.
Abstracts of the 21. scientific conference dedicated to the International Year of Physics2005
Abstracts of the 21. scientific conference dedicated to the International Year of Physics2005
AbstractAbstract
[en] Full text: Al and Cu coatings on glass, copper and steel substrates were obtained by the method of a rotating wire brush. Such a treatment makes both cutting out metal particles from bulk metal specimen and transferring them to the substrate in conditions of severe dynamical shear deformation. At the micro level, the scheme of deformation is similar to that for the friction test. The procedure is performed in air and involves intensive oxidation of transferred metal particles. The results of secondary ion mass spectrometry (SIMS) show the presence of oxygen compounds of metals practically throughout the coating. The AFM and X-ray diffraction studies of coatings showed that transferred metals have a nonhomogeneous, thermally stable nano structure with a grain size from 30 to 200 nm. The microhardness of the coatings was by a factor of 8-10 higher than that for the source metals. The coatings show high adhesion and good wear resistance. Such properties are determined by nano structure of coatings, stabilized by the presence of oxide interlayers
Original Title
Metala - oksida nanostruktureto parklajumu iegusana ar mikrotribologisko metodi
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Source
Inst. of Solid State Physics, Univ. of Latvia, Riga (Latvia); 97 p; 2005; p. 41; 21. Scientific Conference dedicated to the International Year of Physics; Riga (Latvia); 7-9 Feb 2005; Available from http://www.cfi.lu.lv/cfi1_lv.htm
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Miscellaneous
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Conference
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