Fractal Analysis of Fracture Surfaces in Ceramic Materials
| Autor: | E. Heier, T. Hansson, J. Wasén |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Materials science
Mechanical Engineering Metals and Alloys Mineralogy Cleavage (crystal) Fractography Condensed Matter Physics Fractal analysis Fractal dimension Physics::Geophysics Fractal Fracture toughness Mechanics of Materials visual_art visual_art.visual_art_medium General Materials Science Ceramic Crystallite Composite material |
| Zdroj: | Scripta Materialia. 38:953-957 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/s1359-6462(97)00566-6 |
| Popis: | Fracture processes in metallic and ceramic systems do generally have, on the microscale, a stochastic (irregular) character resulting in an irregular fracture surface geometry. This irregularity of the fracture surface reflects the multiplicity of glide and cleavage planes as well as the variations in grain orientations in polycrystalline materials. Considerable amounts of experimental data from fracture surfaces demonstrate this kind of fracture behavior in a clear manner. This fact has inspired several investigators in the literature to apply fractal analysis on fracture surface in order to be able to interpret the fracture surface geometry in microstructural terms. Further, more or less successful attempts to connect the fractal properties of the fracture surface to the mechanical behavior of materials have been made. The purpose of this paper is to demonstrate relations between geometrical parameters (the fractal dimension and the angular properties) of fracture surfaces in various ceramic materials and to study the relation between the fractal properties of the fracture surface and the fracture toughness of the materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect