Re: [ATM] Bronze reflectivity

[Anthony Stillman <atmer@flash.net>]

Dominic,

Let me emphasize the "preliminary" in preliminary
data.  

I've got lots of plans in the works.  An evacuated
container.  Keep a little hand pump with it to suck
the air out when I put the mirror away. (yea right)
Oxygen absorbing  packets in Tupperware. (much more
likely to happen) Monoxide overcoat (seems like
cheating).  Some way to suck the oxygen back out.(soak
the mirror in hydrogen?)  Small quantities of another
element to lessen the rate of oxidation. (germanium)

One thing I've done is looked closely at the grain
structure of the alloys I?ve made.  In the process
I?ve learned a little metallurgy, which is totally way
cool by the way.  There is uniformity and there isn't,
it depends.  Scale, thermal history, the way you
define uniform.  Here's a another slide from the talk
<http://www.atmlist.net/contrib/atmer-at-flash-dot-net/active.jpg>
.  The long side is about 300um.

Another plan is to fidutialize a polished sample, take
reflectivity measurements in many different places,
then etch the sample and associate the measurements to
the grain structure.

Yet another plan is to...

Thanks for taking an interest.  Do you know where I
can buy oxygen absorbing packets like the ones found
in beef jerky packages?

Anthony
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