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Oxidation resistance of hot-pressed SiC-BN composites

  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

The oxidation resistance of SiC-BN composites with different BN content hot-pressed from Si3N4, B4C and C was investigated. The oxidized products of SiC and BN were identified to be SiO2, C and B2O3, N2. SiO2 and B2O3 could further form a borosilicate glass which covered the surfaces of the samples and withstood oxidation because of its flowability and self-healing. The oxidation resistance of the SiC-BN composites in static air atmosphere deteriorated with the increase of temperature as well as of the BN content.

Original languageEnglish
Pages (from-to)317-321
Number of pages5
JournalCeramics International
Volume34
Issue number2
DOIs
StatePublished - Mar 2008

Keywords

  • B. Composites
  • BN
  • D. SiC
  • Oxidation

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