Fractal analysis of engineering ceramics ground surface

• Published in: Applied surface science 2012-06, Vol.258 (17), p.6406-6415
• Main Authors: Liang, Xiaohu, Lin, Bin, Han, Xuesong, Chen, Shangong
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Engineering ceramics; Exact sciences and technology; Fractal analysis; Grinding; Physics; Surface topography
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2012.03.050

► In general, the texture in engineering ceramics surface is fine and dense, when the fractal dimension is high. ► The size order of fractal dimension is steel, zirconia, silicon nitride and alumina. It is the same as the order of fracture toughness of four materials. ► With the higher value of the fractal dimensions, they can indicate the better wear resistance for the same material. Traditional methods of roughness characterization cannot properly reflect the differences between metal and engineering ceramics surfaces. Therefore, fractal method is introduced to characterize the engineering ceramics ground surface in this paper. This article compares various methods to calculate profile dimension. By comparison, the variation method is suitable for extracting fractal dimension of engineering ceramics ground surface. The precision of variation method is further improved by modifying the error. In view of engineering ceramics ground surface, we have analyzed the relationship between fractal dimension and traditional roughness parameters, surface texture, surface function and material property using modified variation method.