@cargo The thing about silica fume is it can be converted to Silicon Carbide by heating it with graphite at 1500°C (2730°F). My guess is that if the silica fume is pure enough coming from the Purevap process this could be another avenue that $HPQ + $PYR could investigate down the road. @cargo Sweet, just found the info I was looking for, the purity of the silica fume
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