Residual stresses in porcelain tiles. Measurement and process variables assessment
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Otros documentos de la autoría: Sánchez-Vilches, Enrique; Sanz-Solana, Vicente; Castellano, Javier; Sales, J.; Kayaci, Kagan; Taskiran, Ugur; Anil, Ümit; Türk, Senay
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Título
Residual stresses in porcelain tiles. Measurement and process variables assessmentAutoría
Fecha de publicación
2019-04-22Editor
ElsevierCita bibliográfica
SÁNCHEZ, E., et al. Residual stresses in porcelain tiles. Measurement and process variables assessment. Journal of the European Ceramic Society, 2019, 39(11): 3364-3372Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0955221919302766Versión
info:eu-repo/semantics/updatedVersionPalabras clave / Materias
Resumen
This research addresses the residual stresses phenomenon taking place during the manufacture of porcelain tiles. Residual stresses were quantified by the strain relaxation slotting method. The method is based on the ... [+]
This research addresses the residual stresses phenomenon taking place during the manufacture of porcelain tiles. Residual stresses were quantified by the strain relaxation slotting method. The method is based on the fact that stresses are released when a slot is made leading to a curvature change.
Once the method was validated, the impact of process variables such as starting body composition, temperature and cooling rate of firing cycle was investigated. Findings showed that cooling rate was the most influencing variable whereas Young’s modulus of fired specimens also play a significant role. Symmetry of the parabolic residual stress profile denoted homogenous cooling on upper and lower tile surfaces during the cooling step. In addition, it was observed that polishing of a stressed tile gives rise to a decreasing of deformation as a consequence of stress release by mechanical grinding. [-]
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