Journal article Open Access

Efficacy of a ZrB2–SiC matrix in protecting C fibres from oxidation in novel UHTCMC materials

Luca Zoli; Diletta Sciti


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{
  "DOI": "10.1016/j.matdes.2016.09.104", 
  "abstract": "<p>A series of high-density ceramic composites with carbon fibre content between 40 and 65% and ultra-refractory ceramic matrix was produced by slurry infiltration and hot pressing. The matrix consisted of ZrB2&ndash;10 vol% SiC or ZrB2&ndash;40 vol% SiC ceramic mixtures. Water&ndash;based and polymer&ndash;based routes were tested to analyse the effects on microstructure, mechanical properties and oxidation resistance at 1650 &deg;C in air. Changing the process and/or the processing parameters was found to affect the final composition, the amount of residual porosity, the matrix/fibre adhesion. Composites with nearly fully dense matrix and optimized infiltration of fibre preforms were found to possess the highest strength (240 MPa) and oxidation resistance. Composites with a weak interface and higher porosity in the matrix showed higher toughness (up to 12 MPa m0.5) but were more prone to oxidation and erosion.&nbsp;</p>", 
  "author": [
    {
      "family": "Luca Zoli"
    }, 
    {
      "family": "Diletta Sciti"
    }
  ], 
  "id": "1292518", 
  "issued": {
    "date-parts": [
      [
        2017, 
        1, 
        5
      ]
    ]
  }, 
  "language": "eng", 
  "title": "Efficacy of a ZrB2\u2013SiC matrix in protecting C fibres from oxidation in novel UHTCMC materials", 
  "type": "article-journal"
}
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