Ceramic Matrix Composites

Material Systems

  • Cf/SiC and SiCf/SiC – oxidizing environments at or below 3000ºF (1650ºC)

  • Cf/ZrC – oxidizing environments of >3500ºF (1940ºC)

  • Cf/HfC – oxidizing environments of >4000ºF (2200ºC)

  • Cf/SiC-ZrC and Cf/SiC-HfC – oxidizing environments up to 4000ºF (2200ºC)

  • CMC-encased or CMC-lined carbon/carbon structure

  • Cf/TaC and Cf/TaC-HfC

 

Cf/SiC CMC panel, 1" thick, produced by melt infiltration; inset, cross-section

 

 

Cf/SiC CMC panel, 1" thick, produced by melt infiltration; inset, cross-section (a

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


 

CMC-encased carbon/carbon structures that reduce component weight

 

 

 

CMC SiC/SiC blisk hub fabricated at Ultramet by rapid melt infiltration showing outstanding low porosity and smoothly machined surfaces (outer diameter 8")