Silicon Carbide Ceramic Matrix Composites

COI CERAMICS, INC. developed a series of ceramic matrix composite material systems using the Polymer Impregnation & Pyrolysis (PIP) process. This process is versatile and robust, well suited for the fabrication of complex components. The PIP process utilizes a combination of polymeric and ceramic processes, combining a variety of ceramic fibers, fillers and pre-ceramic polymer resins to produce engineered ceramic composite structures for a broad range of industries and applications.

Benefits of Silicon Carbide CMCs
Typical Applications for Silicon Carbide CMCs

Reinforcing Fiber Flexibility

  • S200 - CG Nicalon
  • S300 - Sylramic SiC
  • S400 - Carbon

BN-Based Fiber Interface Coating

Preceramic Polymer Matrix Precursors

  • S200 - Amorphous SiNC
  • S300/S400 - Crystalline (SiC + Si3N4) or SiC

Physical Attributes

  • Dense Matrix (<5%)
  • High Temperature Capability
  • Good Matrix Dominated Properties and Wear Resistance
 Commercial Aviation Exhaust

Commercial Aviation Exhaust

 Military Aircraft Propoulsion Exhaus

Military Aircraft Propoulsion Exhaust

 Military Aircraft Propoulsion Exhaust
Industrial

Industrial

Typical PIP Fabrication Process Typical Properties of S200 CMC Typical Tensile Behavior of S300 CMC

Typical PIP Fabrication Process

Typical Properties of S200 CMC

Typical Tensile Behavior of S300 CMC
Typical Characteristics of S300 CM

Typical Characteristics of S300 CMC

Typical Characteristics of S400 CMC IM7 Carbon Fiber in a Crystalline SiC Matrix