In this work, we investigate the piezoresistive response of epoxy-graphite composites. A resistive thick-film Wheatstone bridge is deposited by screen-printing onto a beam, a weight is then applied on the tip of the beam and the resulting electrical signal response is recorded, allowing the calculation of the gauge factor. The characterization was made at room temperature, 65°C and 100°C for di...

Activation analysis was carried out on the purified iron and aluminum to study the behavior of trace impurities on purification process, and to estimate the purity of the purified samples. Thermal neutrons with high Cd ratio through D2O column or graphite column were used for the activation of samples to reduce the interference effects by fast neutrons, the reactions, (n, p) or (n, a), from mat...

From the standpoint of processing, hard chromium layer plate may be applied to steels, cast iron, aluminum and nickel base alloys. Cast iron can be plated provided that the surface is capable of conducting the required current and is reasonably free of voids, pits, gross silicate inclusions, and massive segregation. There are many difficulties arising from graphite phase and deposition of hydro...

In this paper we investigate the tribological properties of AlSn-based alloy with different amount of graphite at different normal loads and sliding speed. A modified impeller mixing coupled with chill casting technique was used for the preparation of immiscible alloys. In this paper Al-Sn binary alloys was chosen for this study. This binary system shows the miscibility gap at different concent...

The metabolism of aluminum was followed in patients who were receiving strictly controlled diets, either unaltered or supplemented with aluminum-containing antacids. Aluminum was determined by atomic absorption spectrophotometry with a graphite furnace. All food, water, and medications were analyzed, as were aliquots of urine and stool collected throughout six-day periods. Patients were usually...

Two modes of electrochemical harvesting for microalgae were investigated in the current work. A sacrificial anode (aluminum) was used to study electrocoagulation-flotation process, and a nonsacrificial (graphite) investigate electroflotation process. The inspected effect chloride ions concentration interelectrode distance on performance processes. results demonstrated that both electrodes achie...

in this research, effect of the number of nodular graphite particles, as an important characteristic of ductile cast irons, on the distribution of martensite in dual-phase ductile iron has been studied. ductile iron samples were produced by step casting and the samples were then annealed in order to achieve a fully ferritic structure. a special heat treatment was conducted to produce dual matri...

A ternary intercalation compound of graphite with AIF3 and F2, CXF(A1F3)J/ was prepared under fluorine atmosphere at temperatures of 20-400 °C. The typical 1st stage compound has a composition of C6F(AlF3)o,i5 with a repeat distance of 940 pm. Rapid progress in the reaction led of the formation of graphite fluoride, (C2F),,. ESCA spectra indicate that the chemical bond between host graphite and...