[meteorite-list] Etching Techniques

[Gary K. Foote]

Hi Drake,

Welcome to the list.  I'm sure you will have a plethora of great information on etching.  
My methods?  So far, buy them already etched.  :)

Gary
http://www.meteorite-dealers.com

On 29 Jan 2007 at 20:27, Drake wrote:

> As a newbie, both to this list and meteorites, I want to thank everyone.
> I’m on several lists  but this one is the most easy-going one. You
> people have a great community here!
> 
> I feel compelled to share my recent involvement into meteorites. I have
> been a metallurgist for one of the largest defense contractors in the US
> for almost 10 years. I have two hobbies; high power rockets and
> astronomy. I build 100-pound rockets that go well over 2 miles high, and
> have built an award-winning 20” f5 telescope. (Are you seeing a theme
> here?) 
> 
> It was only recently that I realized how blatantly obvious it should
> have been for me to collect meteorites. (particularly iron meteorites!)
> So, I bought a Nantan and a Compo meteorite to play with. I have a full
> metallurgical laboratory at my disposal with everything a meteorite
> lover could ever dream of. 
from sectioning equipment, to
> grinding/polishing equipment, to digital microscopes with bright
> field/darkfield, polarizers and differential interference contrast
> prisms.
> 
> I’ve been surfing the web for various etchants but am not having much
> luck. I’ve cut a few sections and etched them using my own etchants used
> for Fe-Ni alloys, even ones with picric acid and hydrofluoric acid.  I
> just can’t get as much contrast as I see pictured on websites. 
> 
> Can some of you help me with some various etching techniques?
> 
> Drake
> 
> 
> Quis Custodiet Ipsos Custodes
> 
> Drake "Doc" Dameräu
> President, NEPRA
> NAR Section 614
> L3CC member
> TRA 9934 L3
> 
> www.nepra.com 
> www.rocketmaterials.org  
> http://home.sprynet.com/~monel/home.htm  
> 
> 
> 
> 
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