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@Article{FukumasuBeRaTrSoMa:2018:LoTrAm,
               author = "Fukumasu, N. K. and Bernardes, C. F. and Ramirez Ramos, Marco 
                         Antonio and Trava-Airoldi, Vladimir Jesus and Souza, R. M. and 
                         Machado, I. F.",
          affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Universidade de 
                         S{\~a}o Paulo (USP)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Universidade de S{\~a}o Paulo (USP)} and 
                         {Universidade de S{\~a}o Paulo (USP)}",
                title = "Local transformation of amorphous hydrogenated carbon coating 
                         induced by high contact pressure",
              journal = "Tribology International",
                 year = "2018",
               volume = "124",
                pages = "200--208",
                month = "Aug.",
             abstract = "The development of coatings presenting adaptive characteristics 
                         based on mechanical loads would promote improved local 
                         characteristics. In this work, the surface modification of an 
                         a-C:H coating was analyzed based on the contact pressure using two 
                         tribological tests: lubricated reciprocating ball-on-plane and dry 
                         micro-scratch tests. Local transformation were evaluated based on 
                         Raman spectroscopy and indentation hardness. Results indicated 
                         regions presenting a red-shift of the G band and higher 
                         indentation hardness. High compressive stress field developed 
                         under the contacting region (numerical simulations) coupled to the 
                         red-shift of the G band and the increase on indentation hardness 
                         inside the tested regions are compatible with the nucleation of 
                         sp(3) carbon bond sites derived from sp(2) bonds, indicating a 
                         possible modification of the coating.",
                  doi = "10.1016/j.triboint.2018.04.006",
                  url = "http://dx.doi.org/10.1016/j.triboint.2018.04.006",
                 issn = "0301-679X",
             language = "en",
           targetfile = "fukumasu_local.pdf",
        urlaccessdate = "05 dez. 2020"
}


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