Dunking Crystal
One of my experiments has been to see what happens to calcite in liquid nitrogen. I'm trying to build a beamsplitter that will work in a cold vacuum. So I got to dunk a crystal.
posted by geekedout @ 2:18 PM
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Tuesday, March 07, 2006
5 Comments:
Did you feel like you needed to dunk all the calcite you have so none of them would feel neglected? =)
SO? What happened? Any cracking? Will you be cooling it rapidly or slowly in the vacuum?
Yeah, more details please!
so, this was obviously a very quick cooling - i don't know if you can see it, but it cracked a lot. but it cracked along previous weak planes. the IR spectrograph cools much much slower than insta-dunk. i'll be doing 2 things next - building a "jacket" for the next sample, and the next sample will be much nicer psudo-optical calcite. i've also just got some sample grease from dow corning that i've got to try out.
When are you going to bring some of the liq. nitrogen home so we can play with it?? ;)
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