The effect of mechanical activation on structural changes and kinetics of carbothermic reduction of hematite with graphite was studied in this research. Hematite powder mixture with graphite (with stoichiometry ratio C/O=1) was milled for the time periods of zero to 50 hours, and the structural changes were studied using X ray diffraction (XRD). The effect of mechanical activation on the kineti...

Described herein is a flexible and lightweight chemiresistor made of a thin film composed of overlapped and reduced graphene oxide platelets (RGO film), which were printed onto flexible plastic surfaces by using inkjet techniques. The RGO films can reversibly and selectively detect chemically aggressive vapors such as NO2, Cl2, etc. Detection is achieved, without the aid of a vapor concentrator...

Conductive asphalt concrete can satisfy different and multifunctional applications such as heating roads to get rid of snow ice assure auto-detection, auto-cure, energy recovery. This research aims evaluate the performance with additives like steel fibers graphite powder. work is based on destructive tests (direct tensile test FENIX) non-destructive (electrical resistivity measures). The obtain...

Recent accreditation of titanium powder products for commercial aircraft applications marks a milestone in titanium powder metallurgy. Currently, powder metallurgical titanium production primarily relies on vacuum sintering. This work reported on the feasibility of powder sintering in a non-vacuum furnace and the tensile properties of the as-sintered Ti. Specifically, we investigated atmospheri...

We propose a wearable thermoelectric cooler and heatsink based of silicone elastomer, phase-change material, graphite powder, which can achieve cooling temperature ?5 K at 0.5 W input power for more than 5 h under ambient conditions.

Abstract This study aimed to investigate conductivity behavior of concrete containing graphite and its sensitivity the effects pressure. Graphite powder was added replace partial cement (4 wt.%, 8 12 16 wt.%) as conductive fillers with a water-to-cementitious ratio 0.45. Specimens 0.5 vol.% Kuralon fibers were treated enhance performance self-sensing properties influence fiber contents on elect...

This work intends to extend the electromechanical characterisation of dielectric elastomer actuators. Planar actuators were realised with a 50 m-thick film of an acrylic elastomer coated with compliant electrodes. The isotonic transverse strain, the isometric transverse stress and the driving current, due to a 2 s high voltage impulse, were measured for four electrode materials (thickened elect...

Impurity-free silicon oxide nanowires were synthesized on a 3 cm x 3 cm alumina plate uniformly by thermal evaporation of a mixture of powder of graphite powders and SiOx@Si core-shell particles under argon atmosphere with a flow rate of 50 sccm at 1100 C for 3 hours. The assynthesized products characterized by field-emission scanning electron microscopy, field-emission transmission electron mi...

A graphite powder disk sandwiched between two nickel screens was used as a lithium-insertion working electrode. Electrochemical impedance spectroscopy (EIS), galvanostatic intermittent titration (GIT) using pulsed microcurrent, and in-situ intrinsic resistance measurements were used for the evaluation of kinetics and intrinsic (i.e. physical) resistance changes during charge–discharge cycling f...

Electroanalytical parameters of different graphitic carbon-based electrode materials were compared to select the best one for the pantoprazole electroanalysis. Such parameters include sensitivity, repeatability, residual background current, and signal-tobackground current ratio of the analytical response and such electrodes include conventional carbon-based electrodes such as glassy carbon (GC)...