1 Ocak 2013 Konferans bildirisi Açık Erişim

Tavman, Ismail; Turgut, Alpaslan; Horny, Nicolas; Chirtoc, Mihai

Citation Style Language JSON

{
  "URL": "https://aperta.ulakbim.gov.tr/record/14693", 
  "abstract": "Polymer composites with high thermal conductivity are used more frequently in thermal management of electronic packaging systems. In this study, conductive polymer composites were prepared by melt mixing of ethylene-vinyl acetate (EVA) copolymer with graphite at different volumetric concentrations up to 29.3%. Two kinds of graphite were used as reinforcement to prepare composites: untreated natural graphite (UG) having particle sizes ranging from 20 mu m to 25 mu m and expanded graphite (EG) having originally particle sizes ranging from 5 to 6 mu m in length. Upon mixing at high shear forces EG exfoliates in thin sheets of a few nanometers in thickness. Due to this high aspect ratio of graphite sheets, nanocomposites filled with expanded graphite have a lower percolation threshold for electrical conductivity, about (5 to 6) vol.% compared to the composites filled with untreated graphite (UG) which have a percolation threshold of (15 to 17) vol.%. Thermal diffusivity of the samples was measured by photothermal radiometry. At similar concentrations, thermal diffusivity values for the nanocomposites, EG-filled EVA, were significantly higher than those composites filled with UG.", 
  "author": [
    {
      "family": "Tavman", 
      "given": " Ismail"
    }, 
    {
      "family": "Turgut", 
      "given": " Alpaslan"
    }, 
    {
      "family": "Horny", 
      "given": " Nicolas"
    }, 
    {
      "family": "Chirtoc", 
      "given": " Mihai"
    }
  ], 
  "id": "14693", 
  "issued": {
    "date-parts": [
      [
        2013, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Polymer Matrix Composites Reinforced with Expanded and Unexpended Graphite Particles for Electronic Packaging Applications", 
  "type": "paper-conference"
}