@Article{RossiUedaSilvSilv:2020:ImUHPM,
               author = "Rossi, Jos{\'e} Osvaldo and Ueda, M{\'a}rio and Silva, Ataide R. 
                         and Silva Neto, Lauro Paulo da",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Federal de 
                         S{\~a}o Paulo (IFSP)} and {Universidade Federal de S{\~a}o Paulo 
                         (UNIFESP)}",
                title = "Improvement on UHMWPE and PMMA surface flashover under atmospheric 
                         pressure Using PIII processing",
              journal = "IEEE Transactions on Plasma Science",
                 year = "2020",
               volume = "48",
               number = "10",
                pages = "3386--3391",
                month = "Oct.",
             keywords = "Flashover, insulators, plasma immersion ion implantation (PIII).",
             abstract = "Polymers are plastic materials used as insulators in power 
                         supplies, pulsers, transformers, etc., because of their low cost 
                         and excellent insulating properties. However, in several 
                         applications, the insulating performance of these materials is 
                         limited by the surface flashover instead of the dielectric bulk 
                         breakdown (BD). On the other hand, many works have demonstrated 
                         that the material hydrophobicity has a huge effect on the increase 
                         of resistance to surface flashover in polymers. In this article, 
                         to change this material property, the plasma immersion ion 
                         implantation (PIII) technique has been used for the treatment of 
                         sample surfaces of two important polymers: ultrahigh molecular 
                         weight polyethylene (UHMWPE) and poly-methyl-methacrylate (PMMA) 
                         used in medical and industrial applications, respectively. By 
                         means of the PIII treatment, it was shown that the surface BD 
                         voltage of such polymers has increased, improving the resistance 
                         to surface flashover. Contact angle diagnostic and atomic force 
                         microscopy (AFM) were measured, respectively, for the surface 
                         hydrophobicity and roughness to correlate with the increase of the 
                         surface BD voltage. Moreover, a special BD testing pulser is 
                         employed to assess the polymer resistance to surface flashover by 
                         measuring the corresponding BD voltage under atmospheric 
                         pressure.",
                  doi = "10.1109/TPS.2020.3007735",
                  url = "http://dx.doi.org/10.1109/TPS.2020.3007735",
                 issn = "0093-3813",
             language = "en",
           targetfile = "rossi_improvement.pdf",
        urlaccessdate = "15 maio 2024"
}