Ceramic Fibre Processing and Challenges
topic
Processing challenges: brittleness (damage during handling, weaving), abrasiveness (wear on processing equipment), difficult sizing (organic sizings burn off, ceramic coatings required), limited drapability (stiff fabrics), and interfacial bonding control (weak interface needed for CMC toughness via crack deflection—requires BN or PyC interphase coatings 0.1-0.5 μm via CVD). Textile operations: braiding, filament winding, and 3D weaving possible but slower speeds than polymer fibres.
Role
Ceramic fibre processing requires specialized equipment, protective measures, and quality control (minimizing defects critical for high-temperature performance), with processing costs often exceeding fibre costs—complete CMC component costs $5,000-50,000/kg limiting applications to high-value aerospace and defense.
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