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Characterization of Ceramic Foams through Fourier Analysis of Digital Images
Author(s) -
Hall Matthew J.,
Bracchini Miguel
Publication year - 1997
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1997.tb02981.x
Subject(s) - characterization (materials science) , ceramic , fourier transform , materials science , porosity , fourier analysis , digital image analysis , digital image , sample (material) , mineralogy , composite material , computer science , image processing , image (mathematics) , geology , computer vision , nanotechnology , mathematics , physics , mathematical analysis , thermodynamics
There is an industrial need to accurately characterize the structure of complex materials. Current techniques often rely on a subjective visual examination of the material surface. In this study, a digital camera was used to image ceramic foams having similar structure, but different pore sizes. The structures of the foams were quantified by taking one‐dimensional Fourier transforms of digital images of the surfaces of each sample. The Fourier analysis was used to determine the distribution of spatial frequencies representative of the materials. The goal was to develop a technique to quantify the average pore size and pore spacing of complex porous materials.