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Quantitative assessment of three‐dimensional roughness, anisotropy and angular distributions of fracture surfaces by stereometry
Author(s) -
Exner Hans Eckart,
Fripan Michael
Publication year - 1985
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1985.tb02610.x
Subject(s) - anisotropy , surface (topology) , fracture (geology) , surface finish , surface roughness , materials science , geometry , ceramic , optics , mathematics , composite material , physics
SUMMARY Techniques for characterizing the geometrical nature of rough surfaces by three‐dimensional descriptors are developed. Measurement of surface coordinates from SEM stereopairs by semi‐automatic stereometry is used to establish the raw data. The surface area, the distribution of size and angles of triangular surface facets, the anisotropy of surface geometry, and surface roughness parameters can be assessed by various computing algorithms. Some typical results obtained for fracture surfaces in a ceramic material are shown. Problems, alternative methods and future developments are discussed.