Ceramic Matrix Composites : Material Systems

  • Cf/ZrC—oxidizing environments from 3200-5000°F
  • Cf/HfC—oxidizing environments from 3200-5000°F
  • Cf/TaC and Cf/TaC-HfC
  • CMC-encased or CMC-lined carbon/carbon structure
Example of 2.5” thick C/ZrC composite fabricated by melt-infiltration. Panels up to 14” square x 3” thick have been produced

Example of 2.5” thick C/ZrC composite fabricated by melt-infiltration. Panels up to 14” square x 3” thick have been produced

SEM image of two-dimensional orthogonal weave carbon fabric layup reinforcement, illustrating a representative CMC microstructure

SEM image of two-dimensional orthogonal weave carbon fabric layup reinforcement, illustrating a representative CMC microstructure

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CMC-lined carbon/carbon development specimens (left) and carbon/carbon nozzle (right; ID liner; 13” max. dia.) for reduced component weight

CMC-lined carbon/carbon development specimens (left) and carbon/carbon nozzle (right; ID liner; 13” max. dia.) for reduced component weight

Machining the C/ZrC composite with small radius or sharp edges/tips is possible

Machining the C/ZrC composite with small radius or sharp edges/tips is possible

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Melt Infiltration

Material Systems

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