Information on the binding of organic ligands to metal (hydr)oxide surfaces is useful for understanding the adsorption behaviour of natural organic matter on metal (hydr)oxide. In this study, benzoate and salicylate were employed as the model organic ligands and aluminum hydroxide as the metal hydroxide. The attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectra revealed tha...

Lightweight aluminum composite is a class of foam material that finds many applications. These properties make it suitable for industries, such as the transportation, aerospace and sports industries. In present work, closed-cell foams an Al-Si12CuFe alloy its are developed by stir casting process. The optimization foaming temperature was conducted in terms ligament node size also volatility zir...

The behavior of a A356+0.5 wt%Cu alloy used to manufacture cylinder heads was studied. Samples were solutionized, quenched and aged at 200 °C for 0.1, 1, 10 100 h. TEM characterization showed that the short aging durations (up h), dominating hardening precipitates β″ rods, while long duration (100 dominance shifted Q-phase (Q′, Q″ precipitates). length diameter rods measured produce size distri...

The effect of the application forced convection during continuous solidification A356 aluminum alloy over microstructural parameters AlFeSi phases has been presented in this work. investigation made on fact that as an solidifies under action a rotating magnetic field; non-dendritic casting structure will be obtained. Al-Si studied using stirring equipment with permanent magnets. This device all...

reaction to fire of fire-retarded rigid pur foams and two types of metal faced rigid polyurethane foam core sandwich panel was evaluated by using cone calorimeter test method. the tests were carried out in various radiative heat fluxes from 15 to 75 kw/m2. the radiation rate effect on reaction to fire parameters, including time to ignition (tti), peak of heat release rate (prhr), total heat rel...

For the first time, this research reports the formation of nanoporous layers of metals on the surface of metal substrates by Raney method and their conversion to corresponding porous perovskite layers. The noble metals doped perovskites are used as catalytic converter for reducing automotive pollutants. The use of perovskite as a substrate for the noble metals can reduce the need for such metal...