Abstract Specific heat capacity ( C p ), density ρ and thermal conductivity λ ) of phenolic-bonded 3D-printed sand (3DPS) molds have been determined in the temperature range 20–1400 °C using differential scanning calorimeter (DSC), dilatometer, hot wire method. The results used to simulate gradient a mold during casting aluminum commercial simulation software. simulated compared with laboratory...

In this work, we described a cost-effective and environmentally friendly technique for green synthesis of colloidal silver nanoparticles from aqueous extract of fresh leaves of Acacia melanoxylon and its application as a dopamine and hydrogen peroxide sensor. The prepared silver nanoparticles were characterized by UV-Visible absorption spectroscopy, X-ray diffraction (XRD), scanning electron mi...

Abstract The properties of viscose\TiO 2 and \germanium dioxide (GeO ) are investigated compared. elemental mapping analysis using a field emission scanning electron microscope (FESEM) shows the excellent distribution nanomaterials, while energy dispersive X-ray (EDX) confirms its existence. 500 s cycle rubbing test indicates that abrasion resistance treated samples improves significantly. In a...

This paper investigate the thermophysical properties of liquid as well rapid solidification Al5.0Mg0.2Sc alloys with 3.0 and 6.0 Li wt% by discharge crucible, Impulse Atomization techniques respectively. The crucible method, allowed a simultaneous determination density, surface tension viscosity function temperature. While density are found to decrease content, increases due short-range orderin...

Epoxy-based nanocomposites were fabricated with different content of colloidal silica nanoparticles such as 10.0, 20.0 and 30.0 wt %, through solution casting. The covalent bonding interfaces, resulting from a ring-opening reaction between silica nanoparticles and epoxy matrix were confirmed by the Fourier transform (FT-IR) infrared spectroscopy. These nanocomposites were characterized for ...

1:1 salt of Disopyramide (DPA) with Terephthalic acid (TA) was obtained by the slow solvent evaporation and slurry crystallization methods. X-ray single crystal diffraction DPA:TA confirmed formation transfer an acidic proton from one carboxylic groups TA to tertiary amino group chain moiety (N3-nitrogen atom) DPA molecules. crystals crystalize in triclinic system space P-1. The asymmetric unit...