@InProceedings{NetoHenrCairRodr:2015:StEvMe,
               author = "Neto, R. M. and Henriques, V. A. and Cairo, C. A. and Rodrigues, 
                         Jos{\'e} Augusto Jorge",
          affiliation = "{Instituto de Pesquisas Energ{\'e}ticas e Nucleares (IPEN)} and 
                         {Centro T{\'e}cnico Aeroespacial (CTA)} and {Centro T{\'e}cnico 
                         Aeroespacial (CTA)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)}",
                title = "Structural evaluation of mechanically alloyed of W-50%atC 
                         powders",
                 year = "2015",
         organization = "International Latin American Conference on Powder Technology, 10. 
                         (PTECH)",
             abstract = "Tungsten carbide is potentially attractive for development of 
                         catalysts and widely used for fabrication of cutting tools due to 
                         its high hardness and wear resistance. In this work, the W and 
                         graphite granules were weighted close to the W-50at%C composition, 
                         and processed under argon atmosphere in a planetary P-5 ball mill 
                         using WC-Co balls (10 mm diameter) and vials (225 mL), rotary 
                         speed of 600 rpm, and a ball-to-powder weight ratio of 10:1. 
                         Samples were collected into the vial after different times (20, 
                         60, 300 and 600 min) in order to evaluate the effect of milling 
                         time on the surface properties and phase transformation of 
                         W-50at%C powders. The as-milled W-50at%C powders were 
                         characterized by means of X-ray diffraction (XRD), BET analysis, 
                         He picnometry, and scanning electron microscopy (SEM) techniques. 
                         The particle sizes were promptly reduced during the initial 
                         milling times. Metastable structures were formed during milling 
                         whereas the surface area and porosity were increased for longer 
                         milling times.",
  conference-location = "Mangaratiba, RJ",
      conference-year = "8-11 Nov.",
           targetfile = "neto_structural.pdf",
        urlaccessdate = "27 abr. 2024"
}