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Effect of the acid environment on the electrochemical behaviour of 1045 steel r...
Nóbrega, Ana Cecilia Vieira da; Rocha, L. A.; Avila, E. A.; Martinelli, A. E.; Melo, D. M. A.; Sá, Maria das Vitórias Vieira Almeida deExternal corrosion is one of the most common causes of oilwell casing failure. Hostile environments can be due to acidizing treatments. Although it is common to add corrosion inhibitors and oxygen scavengers in acidic solutions to control external casing corrosion, their real efficiency is unknown yet. Therefore, it is important to establish how aggressive to steel are the different hostile environments to help...
Comportamento tribocorrosivo de sistemas metalocerâmicos odontológicos de Ni-Cr...
Araújo, A. M. A.; Martinelli, A. E.; Nascimento, R. M.; Melo, D. M. A.; Medeiros, A. L.; Rocha, L. A.; Avila, E. A.Partial fixed prosthodontic restoration is used to rehabilitate both the form and function of partial or total compromised teeth and must remain permanently joined to the remaining teeth. The most useful material in prosthodontics is feldspar porcelain, commercialized as aluminosilicate powders. Dental porcelains depict limited mechanical strength to rehabilitate extensive spaces. The association of porcelain w...
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