@InProceedings{Trava-AiroldiBoneSantCora:2007:DLFiPr,
               author = "Trava-Airoldi, Vladimir Jesus and Bonetti, L. F. and Santos, L. V. 
                         and Corat, Evaldo Jos{\'e}",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and ITA and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "DLC film properties obtained by low cost and modified pulsed-DC 
                         discharge",
                 year = "2007",
         organization = "International Conference on Metallurgical Coatings and Thin 
                         Films.",
             abstract = "Surface and bulk properties of diamond-like carbon films prepared 
                         by using different techniques and under different conditions have 
                         been of great concern. The main focus is to reach low friction 
                         coefficient, low total stress, high hardness, and very high 
                         adherence with the substrate, including the deposition in large 
                         area at large growth rate. In this work, DLC films were obtained 
                         by using a low cost modified Pulsed-DC Discharge technique. 
                         Different pulse bursts with different pulse width and delay time 
                         were considered. Studies have been carried out in order to match 
                         the best set of parameters as mentioned above for different 
                         applications, as required in the frame work of our project. The 
                         sp2/sp3 ratio measurements, growth rate, hardness, friction 
                         coefficient, total stress, and the adherence on Ti6AL4V substrate 
                         were studied as a function of the pulse burst characteristic. 
                         Micro indentation ranging from 10 to 50 mN was used to measure the 
                         hardness on thin DLC films, the friction coefficient and critical 
                         load were performed by using a trybometer ranging form 0.2 up to 
                         50 N, a conventional perphilometry technique was used to measure 
                         the total stress and thicknesses ranging from 0.2 to 4 
                         micrometers. Raman analysis besides the quality, also were used to 
                         evaluate the sp2/sp3 ratio. Finally, low friction coefficient, low 
                         total stress, high hardness and very high adherence were obtained, 
                         so that, some consideration concerning scaling up for industrial 
                         production of DLC films will be presented.",
  conference-location = "San Diego, Calif{\'o}rnia",
      conference-year = "23-27 Apr.",
             language = "en",
        urlaccessdate = "11 maio 2024"
}