Physical and Chemical Analysis, Multifractal and Wavelet Analysis of Structure and Friction Surface Relief

Abstract

Using system approaches provides essential development of traditional methods in materiology and their effective application for objects with difficult multiscale structure and for nano-structural materials as well. It shows application of complex physical and chemical analysis, multifractal and wavelet analysis to describe material structures in qualitative and quantitative way, which allows revealing the differences poorly distinguished with other separate methods and estimating system characteristics of material structures and characterizing the process in self-organizing in structures. Formation by tearing of friction surface structures for composite materials with additives of Al2O3 and SiC is described in comparable thermodynamic conditions. Adding SiC in comparison with Al2O3 promotes to a lesser extent fragmentation and increase in frequency of setting and breaking processes. Adding graphite to reinforced SiC composite material results in increase in nonequilibrium of thermodynamic condition of structure formation. Additional introduction of graphite in even greater degree strengthens distinctions between materials with SiC and Al2O3 additives, which results in formation of the least ordered structures of friction surface.

Keywords

• nanostructured materials
• aluminum alloys
• wavelet analysis
• composite materials
• surface topography