Abstract: Guinier-Preston (GP) zone formation and precipitation behavior of T1 (Al2CuLi) phase during the ageingof an Al-Cu-Li-Zr alloy was studied by differential scanning calorimetry (DSC) technique and electrical resistancemeasurement of the samples. Results show that endothermic effects in the thermograms of the alloy between 180°Cand 240°C can be related to the enthalpy of GPzones dissolut...

To evaluate the effects of industrial by-products materials on the performance of porous concrete for plant growth, this study investigated the physical, strength, and freeze/thaw resistances of porous concrete for plant growth, prepared by replacing cement with blast furnace slag powder at 60% by weight, and replacing natural stone aggregates with coarse blast furnace slag aggregates at rates ...

The metal smelting business is expanding, moving from combustion-based to electric-powered smelts. By adjusting the quantity of electrical power that enters heater be transformed into heat, temperature melting chamber can quickly approach 1000°C. But if thermal resistance unable slow down rate heat transfer outside, inside likewise fall quickly. If keeps happening, furnace machine's 1000°C cann...

Soderberg electrodes feature prominently in the operation of metallurgical electrical furnaces. The electrode material must bake before entering furnace; failure to will lower efficien...

The effects of oxygen partial pressure and annealing temperature on the microstructure, electrical properties, film adhesion Pt thin-film resistors with PtxOy as layer were investigated. Pt/PtxOy films deposited alumina substrates by radio frequency sputtering annealed in a muffle furnace at temperatures range 800–1000 °C. microstructure chemical composition examined optical microscopy, scannin...

The purpose of this study was to evaluate mechanical properties of the orthodontic wires according to heat treatment environments and cooling methods. Four types of wires were heat-treated in air, argon and vacuum at 500◦C, for 6 min, and were then either cooled in the furnace or a water bath. Increases in microhardness, maximal strength, yield strength and Young’s modulus of the orthodontic wi...

polymer-graphite powder composite behaves as a low-conductive material which can be used as an automatic fuse for adhesive connector in electrical circuits. the conductivity of this composite, below its transition temperature, tt, depends on concentration of carbon powder, slowly decreases as the temperature increases. meanwhile, the electrical resistivity of this material in transition tempera...