1 Ocak 2013 Konferans bildirisi Açık Erişim

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

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{
  "@context": "https://schema.org/", 
  "@id": 14693, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Dokuz Eylul Univ, Dept Mech Engn, Izmir, Turkey", 
      "name": "Tavman, Ismail"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Dokuz Eylul Univ, Dept Mech Engn, Izmir, Turkey", 
      "name": "Turgut, Alpaslan"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Reims, Multiscale Thermophys Lab, Reims, France", 
      "name": "Horny, Nicolas"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Reims, Multiscale Thermophys Lab, Reims, France", 
      "name": "Chirtoc, Mihai"
    }
  ], 
  "datePublished": "2013-01-01", 
  "description": "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.", 
  "headline": "Polymer Matrix Composites Reinforced with Expanded and Unexpended Graphite Particles for Electronic Packaging Applications", 
  "identifier": 14693, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Polymer Matrix Composites Reinforced with Expanded and Unexpended Graphite Particles for Electronic Packaging Applications", 
  "url": "https://aperta.ulakbim.gov.tr/record/14693"
}