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		<doi>10.1016/j.surfcoat.2011.03.029</doi>
		<label>lattes: 9226460532838417 5 OliveiraMelSilGonUed:2011:ImPrOf</label>
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		<citationkey>OliveiraMeSiGoUePi:2011:ImPrTi</citationkey>
		<author>Oliveira, Rogério de Moraes,</author>
		<author>Mello, C B,</author>
		<author>Silva, G,</author>
		<author>Gonçalves, J. A N.,</author>
		<author>Ueda, Mario,</author>
		<author>Pichon, L.,</author>
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		<group>LAP-CTE-INPE-MCT-BR</group>
		<group>LAP-CTE-INPE-MCT-BR</group>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Laboratoire de Métallurgie Physique, Université de Poitiers, Poitiers, France</affiliation>
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		<title>Improved properties of Ti6Al4V by means of nitrogen-hydrogen high temperature plasma based ion implantation</title>
		<journal>Surface and Coatings Technology</journal>
		<year>2011</year>
		<volume>205</volume>
		<number>Supplement 2</number>
		<month>July</month>
		<keywords>Plasma based ion implantation, Oxide cathode, Ion diffusion.</keywords>
		<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 &#956;m, 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.</abstract>
		<pages>S111-S114</pages>
		<language>en</language>
		<secondarytype>PRE PI</secondarytype>
		<dissemination>WEBSCI; PORTALCAPES.</dissemination>
		<area>FISPLASMA</area>
		<secondarymark>B2_ASTRONOMIA_/_FÍSICA A1_ENGENHARIAS_II A2_ENGENHARIAS_III B1_ENGENHARIAS_IV A2_GEOCIÊNCIAS A1_INTERDISCIPLINAR A1_MATERIAIS B1_MEDICINA_II B2_QUÍMICA</secondarymark>
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