Ceramic Matrix Composite · Product form
Ceramic Matrix Composite Prepreg
Who makes qualified prepreg in this fiber and resin system, and what is the out-time?
What it is
Reinforcement pre-impregnated with a controlled fraction of partially cured resin, supplied frozen and with a finite out-time and shelf life. The dominant input for aerospace primary structure.
- Typical dimensions
- Tape from 0.125 to 12 inch width; broadgoods to roughly 60 inch width.
- Also known as
- pre-impregnated, tape, slit tape, broadgoods, thermoset prepreg, thermoplastic tape
Suppliers
Grouped by what they actually are. A mill and a distributor answer different needs.
Mills and producers 2
Companies that manufacture this form. Mill direct means longer lead times and mill minimums, with full melt traceability.
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Axiom Materials VerifiedAS9100
CMC supplied as prepreg rather than as a finished component, rated to 2,200 degrees F. This puts layup and cure in the customer's hands, which is a different procurement from buying a finished CMC part.
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GE Aerospace Ceramic Composites VerifiedSiC/SiC
CMC tape produced at Huntsville alongside the SiC fiber line.
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Production methods
The same form, purchased as tolling on your own material.
Prepregging 1
Impregnating reinforcement with a controlled resin fraction and partially advancing the cure, then slitting and packaging under refrigeration. Qualification is per material system and per line.
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Axiom Materials VerifiedAS9100
Ceramic matrix composite prepreg production, rated for thermal performance to 2,200 F. Recorded from the product back to the process: Axiom makes the prepreg, so it performs prepregging. Resin chemistries span epoxy, BMI, phenolic, polyester, cyanate ester, vinyl ester and polyimide. This is a genuine CMC prepreg, not ceramic fibre in an organic matrix. The distinction matters, because the latter is a polymer matrix composite and belongs on a different page.
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