Re: [ATM] Bronze reflectivity

["Thomas Janstrom" <thomas@moiler.com>]

Re O2 adsorbing packets, they were originally developed by the CSIRO
(the Australian national science mob) so I would thing as a first port
of call for info they would be a good place to start....

For other metal samples you might try eBay, there is a pure element
retailer (a bit pricy, but where else can you get a small sample of just
about any element you care to name?). I think they are called
Elementium, but I'm not too sure. I did get a small Ru sample (5grm)
from them some time ago, they were willing to help me out when no-one
else would even listen to me;), so no real connection other than being a
happy customer.

Hope this is of some help to you.

Cheers, Thomas.

-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf
Of Anthony Stillman
Sent: Friday, 9 June 2006 8:26 PM
To: Dominic-Luc Webb
Cc: atm@atmlist.net
Subject: Re: [ATM] Bronze reflectivity

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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