Densification of irregular polydispersed glass particles described as a complex relaxation process
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Título
Densification of irregular polydispersed glass particles described as a complex relaxation processAutoría
Fecha de publicación
2022Editor
ElsevierCita bibliográfica
AMORÓS, J. L., et al. Densification of irregular polydispersed glass particles described as a complex relaxation process. Open Ceramics, 2022, vol. 9, p. 100205.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S2666539521001516Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
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. [-]
Publicado en
Open Ceramics, 2022, vol. 9.Entidad financiadora
Generalitat Valenciana | Instituto Valenciano de la Competitividad Empresarial
Derechos de acceso
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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