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Multiscale microstructural characterization of particulate-reinforced composite with non-destructive X-ray micro- and nanotomography

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Dastgerdi, J. N., Miettinen, A., Parkkonen, J., & Remes, H. (2018). Multiscale microstructural characterization of particulate-reinforced composite with non-destructive X-ray micro- and nanotomography. Composite Structures, 194, 292-301. https://doi.org/10.1016/j.compstruct.2018.04.022
Published in
Composite Structures
Authors
Dastgerdi, J. Nafar |
Miettinen, Arttu |
Parkkonen, Joni |
Remes, H.
Date
2018
Discipline
FysiikkaPhysics
Copyright
© 2018 Elsevier Ltd. This is a final draft version of an article whose final and definitive form has been published by Elsevier Ltd. Published in this repository with the kind permission of the publisher.

 
Methods based on X-ray tomography are developed to study the relevant statistical quantities describing the microstructural inhomogeneity of particulate reinforced composites. The developed methods are applied in estimating microstructural inhomogeneity parameters of composites containing metallic glass particles in metal matrix, extruded in varying pressure loads. This study indicates that the critical characteristics with regard to the effect of particle clustering are cluster size and shape, local volume fraction of particles in the cluster and the distance between clusters. The results demonstrate that the spatial distribution of reinforcement is very uneven and the amount of particle clustering varies with amount of reinforcement. Moreover, X-ray nanotomography was used to investigate the structure of individual clusters and the results suggest that high extrusion load may cause break-up of individual particle clusters so that their shape changes from solid and spherical to broken and ellipsoidal. ...
Publisher
Elsevier Ltd
ISSN Search the Publication Forum
0263-8223
Keywords
particle-reinforcement microstructural analysis multiscale rikkomaton aineenkoetus
DOI
https://doi.org/10.1016/j.compstruct.2018.04.022
URI

http://urn.fi/URN:NBN:fi:jyu-201804112035

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/27984846

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