I've found the "ask the experts" forum at :
http://www.metallography.com/bboard/forum.html
a rather useful place for browsing details of etchants - particularly
where the materials are innovative.
Tim
> Not that David Scott's book isn't well worth the $40.00..... for the most
> comprehensive list of etchants and metallography procedures I've come
> across(though not specifically directed to archaeological samples), the LECO
> Corporation do a free booklet "Metallography Principles and Procedures".
>
> Invaluable, next time you need to prepare a piece of cadmium!
>
> Their UK supplier is:
> LECO Instruments (UK) Ltd
> Newby Rd
> Hazel Grove
> Stockport
> Cheshire
> SK7 5DA
> Tel. 0161 487 5900
>
> David Starley PhD
> Science Officer
> Royal Armouries
> Armouries Drive
> Leeds, W. Yorks
> LS10 1LT
> UK
>
> tel 44 (0)113 220 1919
> fax 44 (0)113 220 1917
>
>
> -----Original Message-----
> From: [log in to unmask] [mailto:[log in to unmask]]
> Sent: Sunday, October 29, 2000 1:34 PM
> To: [log in to unmask]
> Subject: Metals under a light microscope
>
>
> Dear All,
> I have been reading 'Archaeology: Theories, Methods and Practice' (Renfrew
> /Bahn). The box on page 325 shows crystal structures under a light
> microscope. The text mentions polishing the metal then etching it with a
> chemical. Unfortunately, it does not state which chemicals are used. Can
> anyone tell me which chemicals are required? I would also be grateful for
> some tips on how to do the etching.
> Many thanks.
> Ian Medhurst
>
Dr Tim Young
Email: [log in to unmask]
Web: http://www.geoarch.demon.co.uk/
Phone: 029 2074 7480
Fax: 08700 547366
Mobile: 07802 413704
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