Abstract: In this paper solid state reduction of high carbon ferrochromium-chromite composite pellets in the temperature range of 900-1350°C was investigated. A two stage reduction mechanism is proposed. The first stage is likely to be controlled by the chemical reaction with activation energy of 127.2kJ/mol. In the second stage, solid state diffusion of carbon through the reaction product ...

The equilibrium and rate constants of molecular complex formation are of great interest both in the field of chemistry and biology. Here, we use fluorescence correlation spectroscopy (FCS), supplemented by dynamic light scattering (DLS) and Taylor dispersion analysis (TDA), to study the complex formation in model systems of dye-micelle interactions. In our case, dyes rhodamine 110 and ATTO-488 ...

Abstract We analyze semilinear reaction–diffusion systems that are mass controlled, and have nonlinearities satisfy critical growth rates. The under consideration only assumed to natural assumptions, namely the preservation of non-negativity a control total mass. It is proved in dimension one if (slightly super-) cubic rates then system has unique global classical solutions. Moreover, case diss...

Reactions in the Earth's crust occur through a dissolution-precipitation process presence of fluid. Dissolution releases aqueous species which are transported to locus precipitation. This replacement generates creep deformation (i.e., creep) due volume change during reaction and stress-controlled mass re-distribution rock. Reaction under stress also modifies rock microstructure pressure record ...

Shape is one of the most important determinants of the properties of microstructures. Despite of a recent progress on microfabrication techniques, production of three-dimensional micro-objects are yet to be fully achieved. Nature uses reaction-diffusion process during bottom-up self-assembly to create functional shapes and patterns with high complexity. Here we report a method to produce polyme...