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@ARTICLE{Viani:852480,
author = {Viani, Alberto and Ševčík, Radek and Appavou,
Marie-Sousai and Radulescu, Aurel},
title = {{E}volution of fine microstructure during firing of
extruded clays: {A} small angle neutron scattering study},
journal = {Applied clay science},
volume = {166},
issn = {0169-1317},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2018-05411},
pages = {1 - 8},
year = {2018},
abstract = {The microstructure of extruded fired-clay bodies in the
interval 800–1100 °C has been investigated with small
angle neutron scattering. The evolution of the retrieved
pore size distribution is compatible with the coarsening of
the pore network with increasing temperature. The analysis
of the scattering curves in combination with results of
electron microscopy, indicated a multiscale nature for the
pore-matrix microstructure. A structural parameter obtained
from the analysis of the scattering curves, is proposed as
indicator of maximum firing temperature through the
implementation of a linear calibration curve. Such method
has been successfully tested on a material of industrial
production and can be considered of interest for the
production of custom made replacement materials in the
conservation of cultural heritage or for the
characterization of the manufacturing process of
archaeological fired-clay objects. Textural features
originated by the forming process of extrusion have been
detected as anisotropy of the pore network. They are still
present above 1000 °C and, because of the use of screw
extrusion, they are observed in both sections cut parallel
and perpendicular to the direction of extrusion.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
ddc = {550},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-1-20110106},
pnm = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)KWS2-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000449135300001},
doi = {10.1016/j.clay.2018.09.002},
url = {https://juser.fz-juelich.de/record/852480},
}