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Characterization of Powders using Micro Computed Tomography
Author(s) -
Redenbach Claudia,
OhserWiedemann Renate,
Löffler Ralf,
Bernthaler Timo,
Nagel Alwin
Publication year - 2011
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.200900088
Subject(s) - characterization (materials science) , materials science , sieve (category theory) , sieve analysis , particle (ecology) , particle size , computed tomography , tomography , diffraction , optics , mathematics , physics , nanotechnology , chemistry , medicine , oceanography , combinatorics , geology , radiology
Abstract Micro computed tomography (μCT) is proposed as a tool for the characterization of powders. Using this technique three dimensional images carrying the whole spatial information on a particular powder can be obtained. After an image analytic separation of the single particles, distributions of geometric characteristics describing size, shape, and spatial arrangement of the particles can be estimated. The method is applied to four samples of powders with different particle structure. The results are compared with particle size characteristics measured by laser diffraction, sieve analysis, and the analysis of microscopic 2D images.