Electrodeposition of iron (Fe) from an ethereal solution was investigated. The bath consisted of ferrous chloride (FeCl₂), diglyme (G2), and aluminum chloride (AlCl₃), in which iron species were estimated to be [Fe(G2)₂]²⁺ complex cations. The effect of hydrogen gas evolution on the morphology of iron deposits was determined by comparing common aqu...
Published in Ionics
The electrochemical behavior of MgCl2 was investigated in ternary NaCl-KCl-CaCl2 molten chloride mixtures, using inert tungsten and steel electrodes in the temperature range from 973 to 1053 K. Electrochemical methods like square wave voltammetry (SWV), cyclic voltammetry (CV), chronoamperometry (CA), and chronopotentiometry (CP) were applied to in...
The non-isothermal crystallization (NIC) of isotactic polypropylene (iPP) and its composites with submicronic talc particles (μ-talc) was investigated by differential scanning calorimetry. The modeling of the NIC kinetics of the iPP matrix was performed using Jeziorny-modified Avrami’s model, Ozawa’s and Mo’s theoretical approaches. The Jeziorny’s ...
Published in Journal of Thermal Analysis and Calorimetry
With high energy densities, metals appear as innovative energy carriers. In the present study, magnesium powder is considered as fuel for energy production through slow combustion. Thermogravimetric analyses (TG) were carried out to extract the kinetic parameters and determine the mechanism of the overall slow combustion reaction. TG experiments we...
Published in Journal of colloid and interface science
Many solid particles have been used in Pickering stabilized (mini)emulsions. Stabilizing "particles" can be also formed in situ e.g. by aggregation of dye molecules as reported recently. Among the dyes sodium 2-hydroxy-5-[(E)-(4-nitrophenyl)diazenyl]benzoate (Alizarin Yellow R, (AYR)) is one of the best stabilizers. It is assumed to act as sole sta...
Published in The Science of the total environment
New particle formation (NPF) studies have been conducted in China since 2004. Formation of new atmospheric aerosol particles has been observed to take place in diverse environments, even under the circumstances of high pre-existing particle loading, challenging the traditional and present understanding of the physicochemical nucleation mechanisms, ...
Published in Rare Metals
Dynamic recrystallization (DRX) mechanisms of a nickel-based corrosion-resistant alloy, G3, were investigated by hot compression tests with temperatures from 1050 to 1200 °C and strain rates from 0.1 to 5.0 s−1. Deformation microstructure was observed at the strain from 0.05 to 0.75 by electron backscatter diffraction (EBSD) and transmission electr...
Hydrogen implantation at room temperature into monocrystalline silicon leads to the formation of complex defects and also to the appearance of in-plane compressive stress. During annealing hydrogen atoms and vacancies co-precipitate into platelets lying on two types of habit planes. These platelets play a decisive role in the fracture of the materi...
Published in Nanoscale Research Letters
The nucleation mechanism involving rapid solidification of undercooled La-Fe-Si melts has been studied experimentally and theoretically. The classical nucleation theory-based simulations show a competitive nucleation process between the α-(Fe,Si) phase (size approximately 10 to 30 nm) and the cubic NaZn13-type phase (hereinafter 1:13 phase, size ap...
L’étude du polymorphisme de composés pharmaceutiques est un domaine en plein essor. Cela est dû d’une part aux pressions économiques exercées par l’industrie pharmaceutique et d’autre part pour une meilleure compréhension des conséquences du polymorphisme sur les propriétés des médicaments (stabilité physique et chimique, solubilité, vitesse de dis...
