Corrosion Inhibition of Carbon Steel in Neutral Chloride Solutions Using Salts of Primary Bile Acids.

Due to growing environmental concerns and regulatory pressures, the demand for environmentally friendly corrosion inhibitors has increased. Biosurfactants are biodegradable and have a low toxicity. However, very few studies have reported on their potential use as corrosion inhibitors.

Thermoluminescent composites of sintered synthetic-topaz/ corundum for dosimetry by a novel reversible process.

Topaz (AlF(OH)SiO)/corundum (AlO) composites were prepared by a facile and novel reversible process from the sintering of synthetic topaz and AlF powders, with corundum formed into the topaz matrix. The corundum formation reaction occurs in the temperature range 875-975 °C, from 40 min sintering time, obtaining the topaz- AlF(OH)SiO/corundum- AlO composites. Although sintering temperature and time increment lead to higher corundum formation in the topaz matrix (78.

Degradation of Al/SiCp composites produced with rice-hull ash and aluminum cans.

The use of recycling aluminum from beverage containers and rice-hull ash (RHA) offers to be an attractive alternative for the economic production of Al/SiCp composites. However, corrosion phenomena in the composites represent technological barriers yet to be resolved before they can be exploited to their full potential. A simple methodology involving characterization by XRD, SEM, EDX, FTIR and ICP was designed in order to investigate the causes of the rapid degradation in a humid environment of Al/SiCp composites produced with RHA and aluminum cans.