Papers by Keyword: Iron Mesh

Abstract: This paper presents the results of reduction of nitric oxide, NO, by metallic iron in a one-dimensional electrically heated ceramic tubular reactor in the temperature range of 300 °C to 1200 °C with simulated flue gas of 0.05% NO in N2 base. Several sizes of iron mesh rolls were used as iron samples and were placed in the centre of the reactor. The effect of CO on NO reduction was examined by introducing 0.1% CO into the flue gas. Effluent NO was measured as a function of temperature by online gas analyzer. The chemical changes of the iron samples after the reaction were analyzed by X-ray diffraction (XRD) methods. Results showed that iron mesh roll was very effective to reduce NO to N2. When the temperature was higher than 900°C, the NO reduction efficiency was observed to exceed 90% for all the mesh rolls used. Fe2O3 was formed at the surface of the iron mesh. The presence of CO increased the NO reduction efficiency by reducing the iron oxide, mainly Fe2O3, to metallic iron.

Abstract: In this study, pure aluminum reinforced with interconnected galvanized iron mesh and Ni particulates was synthesized using an innovative disintegrated melt deposition technique followed by hot extrusion. Microstructural characterization of composite samples showed uniform distribution of Ni and Al-Ni based intermetallic particulates in the matrix material, good interfacial integrity of aluminum matrix with iron mesh and Ni particulates and the presence of minimal porosity. Results of thermal mechanical analysis indicate a decrease in the average coefficient of thermal expansion of the aluminum matrix with the use of hybrid reinforcements. Mechanical characterization also revealed that the coupled use of galvanized iron mesh and Ni particulates lead to an improvement in the hardness, dynamic modulus, 0.2% yield strength and UTS but ductility was adversely affected. An attempt is made to correlate the use of hybrid reinforcements with the improved properties exhibited by the synthesized composites.