Densification of irregular polydispersed glass particles described as a complex relaxation process
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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INVESTIGACIONMetadata
Title
Densification of irregular polydispersed glass particles described as a complex relaxation processAuthor (s)
Date
2022Publisher
ElsevierBibliographic citation
AMORÓS, J. L., et al. Densification of irregular polydispersed glass particles described as a complex relaxation process. Open Ceramics, 2022, vol. 9, p. 100205.Type
info:eu-repo/semantics/articlePublisher version
https://www.sciencedirect.com/science/article/pii/S2666539521001516Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
The sintering of compacts of irregular non-crystallising glass particles was studied by isothermal and constantrate heating experiments in a hot stage microscope. The resulting data fitted very well to kinetic equat ... [+]
The sintering of compacts of irregular non-crystallising glass particles was studied by isothermal and constantrate heating experiments in a hot stage microscope. The resulting data fitted very well to kinetic equations
developed in this study, in which sintering is assumed to be a complex relaxation process, described by the
Kohlrausch–Williams–Watts (KWW) relaxation function. The effect of compact pressing pressure, heating rate,
and particle size distribution on the sintering curve was determined. It was generally verified that the effect of
temperature on the sintering rate could be described by the effect of temperature on the inverse of glass viscosity.
For industrial particle size distributions, that the pre-exponential factor of the process rate constant (or inverse of
relaxation time) increased with pressing pressure and decreased with the inverse of particle mean radius. For
abnormally wide particle distributions a combination of KWW functions were required. [-]
Is part of
Open Ceramics, 2022, vol. 9.Funder Name
Generalitat Valenciana | Instituto Valenciano de la Competitividad Empresarial
Rights
2666-5395/© 2021 The Authors. Published by Elsevier Ltd on behalf of European Ceramic Society. This is an open access article under the CC BY-NC-ND license
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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