Search results for "Material chemistry"
showing 10 items of 413 documents
Alite hydration modelling and numerical simulations
2008
Utilisation de la technique de frittage flash pour la synthèse et la densification d'iodoapatites
2007
Chalcogenide glass-ceramics for second harmonic generation
2007
International audience; Permanent second harmonic generation (SHG) in chalcogenide based glass-ceramics containing highly nonlinear micro-crystals (crystalline particle size≈2-4 μm) has been demonstrated. In order to investigate whether a controlled crystallisation is an efficient way for improving the SH temporal stability and SH signal intensity of chalcogenide glasses, the Ge23Sb12S65 composition was chosen for its stability against crystallisation and atmospheric corrosion. Different amounts of metallic cadmium were introduced to promote CdS crystallite formation. Glass-ceramics with volume crystallisation were obtained by heat treating the glass samples at different temperatures from 3…
Tricalcium silicate modeling and numerical simulations
2010
International audience; In order to identify and quantify what is modified when tricalcium silicate hydration rate varies, we have developed a model to simulate experimental evolution of reaction advancement versus time. It is experimentally observed that the hydrates formation consists of a primary heterogeneous C-S-H nucleation leading to the formation of clusters followed by the anisotropic growth of these clusters. In our model, C-S-H nucleation is described by a random distribution of clusters on a surface. We split the growth step into two processes corresponding to the clusters growth on the surface (parallel growth) and the increase of the cluster thickness (perpendicular growth). E…
Study of alite containing aluminium hydration
2008
International audience
Glasses of stoichiometric (As2Se3)100-x(Sb2Se3)x system
2013
International audience
Effect of coatings on a commercial stainless steel for SOFC interconnect application in anode atmosphere
2013
International audience
Sintering of lead phospho-vanadate by spark plasma sintering
2009
International audience
Recent advances in the development of chalcogenide photonic crystal fibers.
2006
International audience
Finite Element Analysis and Characterization of a New Low Modulus Titanium Alloy Used in Two THA Designs
2015
International audience