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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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Luca Zoli</dc:creator>
  <dc:creator>Diletta Sciti</dc:creator>
  <dc:date>2017-01-05</dc:date>
  <dc:description>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 ZrB2–10 vol% SiC or ZrB2–40 vol% SiC ceramic mixtures. Water–based and polymer–based routes were tested to analyse the effects on microstructure, mechanical properties and oxidation resistance at 1650 °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. </dc:description>
  <dc:identifier>https://zenodo.org/record/1292518</dc:identifier>
  <dc:identifier>10.1016/j.matdes.2016.09.104</dc:identifier>
  <dc:identifier>oai:zenodo.org:1292518</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>info:eu-repo/grantAgreement/EC/H2020/685594/</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://creativecommons.org/licenses/by-nc/4.0/legalcode</dc:rights>
  <dc:subject>carbon</dc:subject>
  <dc:subject>ZrB2</dc:subject>
  <dc:subject>Microstructure</dc:subject>
  <dc:subject>Mechanical properties</dc:subject>
  <dc:subject>Oxidation resistance</dc:subject>
  <dc:title>Efficacy of a ZrB2–SiC matrix in protecting C fibres from oxidation in novel UHTCMC materials</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>
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