Christian Guizard

TL;DR: In this paper, the relative density/grain size trajectory of a commercially available granulated zirconia powder has been established for a constant heating rate (50°C/min) and a constant applied pressure (100 MPa).

TL;DR: In this paper, the existence of instability and metastability domains in cellular solidification of colloidal suspensions, by direct in situ high-resolution X-ray radiography and tomography observations, is demonstrated and rationalized.

TL;DR: This work demonstrates and rationalizes the existence of instability and metastability domains in cellular solidification of colloidal suspensions, by direct in situ high-resolution X-ray radiography and tomography observations, and explains interface instabilities by a partial Brownian diffusion of the particles leading to constitutional supercooling situations.

TL;DR: In this article, the behavior of colloidal suspensions of alumina partic les during directional solidification by freezing was investigated by in situ high-resolution X-ray radiography and tomography, which provided both qualitative and quantitative information about the propagation kinetic of the solid/liquid interface, the particle redistribution between the crystals and a particle-enriched phase, and the three-dimensional organization of the ice crystals.

TL;DR: The optical properties of transparent spinel sintered by spark plasma sintering have been investigated for incident electromagnetic radiations with wavelengths in the range 0.2-2 mu m as discussed by the authors.