In this paper, the analysis of a reactive hydromagnetic Poiseuille fluid flow under different chemical kinetics through a channel in the presence of a heat source is carried out. An exothermic reaction is assumed while the concentration of the material is neglected. The Adomian decomposition method together with Pade approximation technique are used to obtain the solutions of the governing nonl...

X-ray diffraction with synchrotron radiation has been used for the first time to study chemical interaction in the MnO–ZnO system at 4.8 GPa and temperatures up to 1600 K. Above 750 K, the chemical reaction between MnO and ZnO has been observed that resulted in the formation of rock salt (rs) Mn1-xZnxO solid solutions (0.3 ≤ x ≤ 0.7). The lattice parameters of these solid solutions have been in...

The present paper investigated a preparation of Nano sized Mg0.2Fe0.8O by eco-friendly chemical combustion synthesis using magnesium and iron nitrates as oxidizers and the glycine as a fuel to drive the reaction. Powder characterization was carried out by X-ray diffraction (XRD) to estimate crystallite size, Particle Size Analyzer (PSA), Thermal gravimetric analyzer (TGA) for determining sample...

Modification of natural polymers like protein by graft co-polymerization is an important method to incorporate the desired properties into the backbone. Soy protein concentrate (SPC) was grafted with ethylmethacrylate (EMA) using ascorbic acid /potassium persulphate as redox initiator system under pressure. Different reaction parameters such as reaction time, reaction pressure, solvent amount, ...

The synthesis of three-dimensional (3-D) assemblies of zirconia nanocrystals via the shape-preserving reactive conversion of biologically reproducible, silica-based microtemplates (diatom microshells) is demonstrated for the first time. Silica diatom microshells were first converted into magnesia replicas via an oxidation–reduction displacement reaction with magnesium gas. The magnesia replicas...

In this study, molybdenum-copper/alumina nano composite was synthesized with mechano-chemical method using high energy planetary ball milling. The molybdenum oxide, copper oxide and aluminum powder were used as starting materials and reaction appeared to occur through a rapid combustion reaction process. The evaluation of powder particles after different milling times was studied by X-ray diffr...

When nuclear reactions occur in atoms in molecules chemical changes follow as a reSult of the recoil of the product atoms. The nature of these ·chemical ·changes has been studied intensively for · a number of . systems but in most cases the . magnitude of the recoil energy has been about the same. In the present studies use was made of a much greater recoil energy than tha't normally used. The ...

The effect of non-coaxial rotation on the transport mass subjected to first-order chemical reaction is studied analytically. effects thermal radiation, buoyancy, constructive and destructive reactions along with Casson fluid in rotating frame are discussed. Time evolution primary secondary velocities, energy solute particles analyzed. behavior flow under variation intensity magnetic field also ...