If we can do plasma deposition for cheap mirror reflective sunglasses with polycarbonate, why aren’t these materials commonly used?

  • jjagaimo@sh.itjust.works
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    2 months ago

    Low thermal expansion glasses/ceramics can have coefficients of thermal expansion of 0 (+/- tolerance). For example, SCHOTT ZERODUR can be 0 +/- 0.02 * 10^-6 per degree C.