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 language | English (US) |
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Pages (from-to) | 2285-2296 |
Number of pages | 12 |
Journal | Journal of the European Ceramic Society |
Volume | 19 |
Issue number | 13-14 |
DOIs | |
State | Published - Oct 1999 |
Event | Proceedings of the 1998 New Developments in High Temperature Materials - Istanbul, Turkey Duration: Aug 12 1998 → Aug 15 1998 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry