@Article{OliveiraMeSiGoUePi:2011:ImPrTi,
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 = "11 maio 2024"
}