After fabricating five metallographic specimens of the Cu0.95Al0.05 alloy from electrolytic copper and aluminum, these ones were both microstructurally characterized by using a metallographic optical microscope at room temperature and subjected to mechanical traction in order to chart the stress-strain curve. From the characterization, it has been found out that the Cu0.95Al0.05 microstructure is composed of a single phase, and from the tensile tests, it has been obtained its rupture point, 249.361 MPa. The obtained results were explained in the framework of the theory of metals and metal alloys.

Hematite particles were synthesized by thermal treatment of FeSO4 with different concentrations of sugar. The powder mix of FeSO4 and simple sugar was held at 600 °C for 14 h in a furnace. Using ratios of 1 g and 3 g of FeSO4, to 0.1 g, 0.2 g and 0.3 g of simple sugar respectively. The analysis of the macroscopic magnetic properties of the samples was made with an alternating field magnetometer. For the structural characterization of the samples, X-ray diffractometry (XRD) and transmission Mössbauer spectroscopy (TMS) were used. Depending on the concentrations of sugar used, the presence of hematite or butlerite was observed by XRD. The sole presence of the hematite phase was observed when the ratios of 1 g of FeSO4 to 0.1 g, 0.2 g and 0.3 g of sugar were used. The hematite phase was not observed for the ratios of 3 g FeSO4 to 0.1 g, 0.2 g and 0.3 g of sugar; in these cases the  c...