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2005-01-01 - Colloque/Présentation - communication orale - Anglais - 1 page(s)

Cambier Francis, Descamps J.-C., Gonon Maurice , Meulenyzer Samuel, "X-ray tomography quantification of density gradients in green and sintered ceramics" in Journées annuelles du GFC, Paris, France, 2005

  • Codes CREF : Essais non destructifs (DI2832), Matériaux céramiques et poudres (DI2744)
  • Unités de recherche UMONS : Science des Matériaux (F502)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) The objective of this study is to investigate the feasibility and the accuracy of density measurements on ceramics green bodies by using high-resolution X-ray CT (Computed Tomography). At a first stage, experimental parameters were investigated in order to define the best conditions to observe density gradients in single axe pressed alumina green samples. Then measurements were performed from 2D projection X-ray radiography. Axial and radial gradients in alumina cylinders shaped under various pressures an of various aspect ratios were characterised. Finally 3D X-ray CT were performed and compared to the results obtained in two dimensions.