Maria João Pedroso Carmezim

Research Fellow

Corrosion and Environmental Effects Research Group
Institute of Materials and Surfaces Science and Engineering
Av.Rovisco Pais
P - 1049-001 Lisboa
phone: (+351) 21 841 79 62
fax: (+351) 21 841 97 71

Graduation in Metallurgical Engineering, Instituto Superior Técnico (1986). MSc (Materials  Engineering) Instituto Superior Técnico, Universidade Técnica de Lisboa (1992). PhD (Materials Science), FCT/Universidade Nova de Lisboa (2001).

The scientific interests are focused mainly on the understanding of passivation by the study of inorganic thin films and coatings. The understanding of passivity nature concerns the correlation between structure, semiconducting properties and behaviour of passive films on stainless steels, as well as the establishment of electronics structure models. Films and surface characterization of interest includes electrochemical methods (EIS, Mott-Schottky and fotoelectrochemistry) and X-ray absorption spectroscopy (XAS and XANES/EXAFS). Recently, interest has also been put on the research of new coatings over steel, aiming at the development of low toxicity systems, for aircraft and automotive applications.

Selected Publications

  • M.J. Carmezim, M. Simões, M.O. Figueiredo, M. Da Cunha Belo, “Electrochemical behaviour of thermally treated Cr-oxide films deposited on stainless steel”, Corros. Sci., 44, 451 (2002)
  • M.J. Carmezim, M.O. Figueiredo, “Manganese and iron speciation in chromium oxide films over steel”, Adv. Mater. Forum I, 230-232, 311 (2002)
  • M.J. Carmezim, M.O. Figueiredo, "The protective effect of spinel-type chromium oxide coating on stainless steel", Protective Coatings and Thin Films: Synthesis, Characterization and Applications, Edt. Y. Pauleau & P.B. Barna, NATO ASI Series, 3. High Technology - Vol. 21, pp. 431, Kluwer Acad. Publ. (1997)