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Open Access Publications from the University of California

Ambient to high-temperature fracture toughness and cyclic fatigue behavior in Al-containing silicon carbide ceramics

  • Author(s): Yuan, R.;
  • Kruzic, J.J.;
  • Zhang, X.F.;
  • Jonghe, L.C. De;
  • Ritchie, R.O.
  • et al.

A series of in situ toughened, A1, B and C containing, silicon carbide ceramics (ABC-SiC) has been examined with A1 contents varying from 3 to 7 wt%. With increasing A1 additions, the grain morphology in the as-processed microstructures varied from elongated to bimodal to equiaxed, with a change in the nature of the grain-boundary film from amorphous to partially crystalline to fully crystalline.

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