author = "Oliveira, Rog{\'e}rio de Moraes and Mello, C B and Silva, G and 
                         Gon{\c{c}}alves, J. A N. and Ueda, Mario and Pichon, L.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and Laboratoire de M{\'e}tallurgie Physique, 
                         Universit{\'e} de Poitiers, Poitiers, France",
                title = "Improved properties of Ti6Al4V by means of nitrogen-hydrogen high 
                         temperature plasma based ion implantation",
              journal = "Surface and Coatings Technology",
                 year = "2011",
               volume = "205",
               number = "Supplement 2",
                pages = "S111--S114",
                month = "July",
             keywords = "Plasma based ion implantation, Oxide cathode, Ion diffusion.",
             abstract = "A stable heating source, providing steady temperatures in the 
                         range of 200 to more than 1000 C, was used to perform high 
                         temperature plasma based ion implantation (PBII) on Ti6Al4V. The 
                         precise control of the heating of the samples in vacuum while 
                         performing PBII is accomplished by means of an efficient electron 
                         source, working independent of the conditions of the discharge. 
                         The electrons produced by a low work function (2.1 eV) barium, 
                         strontium and calcium oxide cathode help with the start-up of the 
                         discharge, with the increase of nitrogen ionization and heating of 
                         the samples. The large growth of the treated layer thickness was a 
                         result of the thermal diffusion of nitrogen, reaching up to 20 
                         \μm, in the total process time lasting only 100 min. 
                         Experiments were run by setting a constant substrate temperature 
                         during PBII to 800 C but varying the pulse intensity and the 
                         duration of the process. Our results showed improvements of the 
                         mechanical and tribological properties, and also higher resistance 
                         to corrosion of the samples treated by high temperature PBI.",
                  doi = "10.1016/j.surfcoat.2011.03.029",
                  url = "http://dx.doi.org/10.1016/j.surfcoat.2011.03.029",
                 issn = "0257-8972",
                label = "lattes: 9226460532838417 5 OliveiraMelSilGonUed:2011:ImPrOf",
             language = "en",
           targetfile = "oliveira.pdf",
        urlaccessdate = "31 out. 2020"