We present the results of melting experiments on a moderately depleted peridotite composition (DMM1) at 10 kbar and 1250±1390 C. Specially designed experiments demonstrate that liquids extracted into aggregates of vitreous carbon spheres maintained chemical contact with the bulk charge down to melt fractions of 0 02±0 04 and approached equilibrium closely. With increasing melt fraction, SiO2, F...

Carbon nanotube–metal–oxide composites (metal=Fe, Co or Fe/Co alloy; oxide=Al2O3, MgO or MgAl2O4) have been prepared by hot-pressing the corresponding composite powders, in which the carbon nanotubes, mostly single or double-walled, are very homogeneously dispersed between the metal–oxide grains. For the sake of comparison, ceramic and metal–oxide nanocomposites have also been prepared. The mic...

We investigated the magnetoresistance of Permalloy (Ni80Fe20) films with thicknesses ranging from a single monolayer to 12 nm, grown on Al2O3, MgO and SiO2 substrates. Growth and transport measurements were carried out at 80K in UHV. Applying in-plane magnetic vector fields up to 100mT, the magnetotransport properties were ascertained during growth. With increasing thickness the films exhibited...

A new type of P91 heat-resistant pipeline steel ingot was prepared by feeding Al twisted wire into a melt through multi-point regional micro-supply method, combined with electromagnetic stirring. The type, shape, and size inclusions in the after forging were then analyzed scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), transmission (TEM). results showed that four types...

Growth of (Cr0.5Mn0.5)2GaC thin films from C, Ga, and compound Cr0.5Mn0.5 targets is reported for depositions on MgO(111), 4H-SiC(0001) and Al2O3(0001) with and without a NbN(111) seed layer. Structural quality is found to be highly dependent on the choice of substrate with MgO(111) giving the best results as confirmed by X-ray diffraction and transmission electron microscopy. Phase pure, high ...

An integrated Ca/Cu looping process has been proposed recently for CO2 capture. It uses the exothermic in-situ reduction of CuO with methane or natural gas to supply heat required endothermic calcination CaCO3 regenerate CaO following sorption cycle via bifunctional CaO/CuO composites. composites possess excellent redox characteristics, but rapid decline in capture performance remains an unreso...

Objective: Periodontal disease is an essential phenomenon in human health. Oral pathogens can cause severe break which may show the way to serious issues like chronic obstructive pulmonary and cardiovascular diseases. Therefore, aim of this study evaluate antibacterial effect a series nanoparticles on oral pathogens.Methods: In study, activity such as MWCNT, CuO2, CaCO3, SiO2, Al2O3, MgO ZrO2 a...

In the present study, viscosity of CaO–SiO2–FeO–Al2O3–MgO slag system was measured for recovery FeO in electric arc furnace (EAF) process using Al dross. Considering MgO-saturated operational condition EAF, composition at 1823 K with varying and Al2O3 concentrations. An increase decreasing temperature observed. The activation energy evaluated, change thermodynamically equilibrated phase conside...