Iridium is a rare and expensive metal, for those reasons and others I was wondering if there an alternative to it.
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$\begingroup$ Don't think so. It's labelled as the most corrosion resistant metal for a reason, and I assume silicon foundries wouldn't be using iridium crucibles if there was a cheaper alternative. $\endgroup$– DKNguyenJul 26, 2021 at 4:42
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