Results 91 to 100 of about 13,557 (226)
Uranyl interaction with the hydrated (0001) basal face of gibbsite: A combined theoretical and spectroscopic study [PDF]
, 2008 International audienceThe sorption of uranyl cations and water molecules on the basal (001) face of gibbsite was studied by combining vibrational and fluorescence spectroscopies together with density functional theory ͑DFT͒ computations.
Drot, Romuald +5 more
core +3 more sources
, 1972 Data arc presented showing the changes in physical properties which occur during the calcination of Bayer-process gibbsite at temperatures up to 1400°C. The various stages of the calcination were examined using differential thermal analysis, X-ray diffraction, low-temperature nitrogen adsorption, optical and electron microscopy, and particle-size ...
openaire +1 more source
, 2011 Using simulations and theory, we show that the cubatic phase is metastable for three model hard platelets. The locally favored structures of perpendicular particle stacks in the fluid prevent the formation of the columnar phase through geometric ...
Alessandro Patti +4 more
core +2 more sources
Chemical weathering of the volcanic soils of Isla Santa Cruz (Galápagos Islands, Ecuador) [PDF]
, 2014 We present a study on weathering of volcanic soils using 43 profiles (131 horizons) sampled in Santa Cruz Island (Galapagos Islands). Several weathering indices, based on chemical composition, are used. Since the geological material is highly homogeneous
Ferro, C +4 more
core +1 more source
Experimental simulation of long term weathering in alkaline bauxite residue tailings [PDF]
, 2015 Bauxite residue is an alkaline, saline tailings material generated as a byproduct of the Bayer process used for alumina refining. Developing effective plans for the long term management of potential environmental impacts associated with storage of these ...
Fey, Martin V. +2 more
core +3 more sources
Fluoride removal by adsorption on thermally treated lateritic soils
Bulletin of the Chemical Society of Ethiopia, 2012 The ability of lateritic soils to remove fluoride from water has been studied. Important issues considered in the study include the relation between the mineral composition of soils and their ability to remove fluoride, the effect of thermal treatment of
Kefyalew Gomoro +3 more
doaj
Effect of calcium sulfate source on the hydration of calcium sulfoaluminate eco-cement [PDF]
, 2014 The availability of cements, including eco-cements, with tailored mechanical properties is very important for special applications in the building industry.
García-Aranda, Miguel Ángel +5 more
core
Bulk phase behaviour of binary hard platelet mixtures from density functional theory
, 2010 We investigate isotropic-isotropic, isotropic-nematic and nematic-nematic phase coexistence in binary mixtures of circular platelets with vanishing thickness, continuous rotational degrees of freedom and radial size ratios $\lambda$ up to 5.
C. G. Gray +7 more
core +1 more source
Formulation of calcium dialuminate (CaO·2Al2O3) refractory cement from local bauxite
Journal of Asian Ceramic Societies, 2015 Three types of bauxites containing aluminum hydroxide of 58.1% gibbsite and 19.3% boehmite for BX3, 95.5% of gibbsite for BX55 and 84.5% of gibbsite for BX8 were used with lime at 95% of CaO through solid state sintering in one stage to prepare a ...
A.B. Tchamba +3 more
doaj +1 more source
Validation of a Standard Operating Procedure (SOP) for Forensic Soils Investigation in Brazil
Revista Brasileira de Ciência do SoloSoil traces are useful as forensic evidence due to their potential to transfer and adhere to different types of surfaces on a range of objects or persons. Several works have been developed in forensic soils, under different analytical approaches. However,
Samara Alves Testoni +4 more
doaj +1 more source