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… PMCs in terms of anisotropy, fiber architecture,
high strength/stiffness fibers, and production process sensitivity and
variability, they are also different in many ways such as:
Composite constituents
Degradation, damage, and failure mechanisms
High temperature life predictions
High temperature bonding challenges
NDI challenges
Repairability
…
https://www.wichita.edu/industry_and_defense/NIAR/Documents/jams-presentations/23-Opliger-Ceramic-Matrix-Composite.pdf