Sorry that I come up with this again but right now my lab is just full
of crazy folks with all kind of problems and whenever I have a sec. to
spare another thought comes up to me. What I wanted to suggest is an
approach we tried when we saw the problem with Polycarbonate. We
covered the material with a transparent Tungsten Carbide layer ( a
Swiss watch manufacturer has a unit where they produce their
inscratchable watches by covering the glass with it ). Nowadays thin
diamond layers can be produced and one can also buy sunglasses with a
transparent metal cover. Unfortunately, due to cost reasons, the
research in the field was dismissed.
Just a thought
Regards
Guenter
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