I am working on Ceramic Matrix Composites (with long fibres) and I wonder why we are hearing only about Al2O3, SiC, S-SiC,C, mullite for matrices? It is quite frustating that with 5 or 6 materials you can adress the problems (and that's not true!).
Sometime, we find studies on geopolymeric or UHTC (like ZrB2 and HfB2) matrices. But, what about zirconia, or zirconia-alumina, or other structural or high temperature ceramics like Si3N4, B4C, SiAlON, YAG, PDC (or even clay??) and so on?
I assume that there is an answer: processability, cost, availability, ...
For some specific applications, when the material selection is cost-driven, cheaper CMC could be interesting, like for application below 700 °C where the Al2O3/Al2O3 are overpowered (and costly) and above 350 °C where Organic Matrix Composites are inefficient.
I am open to all aswers!
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