Study of superficial properties of titanium treated by PIIID R.C.C. Rangel, E.C. Rangel, R.M. Oliveira, M. Ueda, W.H. Schreiner and N.C. Cruz Eur. Phys. J. Appl. Phys., 56 2 (2011) 24022 Published online: 28 October 2011 DOI: 10.1051/epjap/2011110173