Creep of SiC-SiC microcomposites

Kevin L. Rugg, Richard E. Tressler, Charles E. Bakis, Jacques Lamon

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations

Abstract

The creep behavior of SiC/C/SiC microcomposites at 1200-1400°C and 140-450 MPa was investigated in the presence and absence of matrix cracking. The microcomposites consisted of single Hi Nicalon or Carborundum fibers coated with a CVD carbon interlayer and a CVD SiC matrix. Since the fibers and matrix had been examined by the identical experimental technique, direct comparisons of the creep of the composite and of the constituents were performed. The creep of uncracked microcomposites was successfully modeled using a simple rule of mixtures algorithm. When matrix cracks were present, the microcomposites were modeled using a series composite consisting of intact microcomposite, exposed fiber at the matrix crack, and the debonded region in between. Trends for behavior with respect to the various mechanical and structural parameters that control creep are presented.

Original languageEnglish (US)
Pages (from-to)2285-2296
Number of pages12
JournalJournal of the European Ceramic Society
Volume19
Issue number13-14
DOIs
StatePublished - Oct 1 1999
EventProceedings of the 1998 New Developments in High Temperature Materials - Istanbul, Turkey
Duration: Aug 12 1998Aug 15 1998

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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