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From: straka@ihlpf.ATT.COM (Straka)
Newsgroups: rec.audio,sci.electronics
Subject: Re: Mumetal
Message-ID: <2034@ihlpf.ATT.COM>
Date: Mon, 24-Aug-87 16:55:02 EDT
Article-I.D.: ihlpf.2034
Posted: Mon Aug 24 16:55:02 1987
Date-Received: Tue, 25-Aug-87 06:42:41 EDT
References: <3755@watdcsu.waterloo.edu> <1946@kitty.UUCP>
Reply-To: straka@ihlpf.UUCP (55223-Straka,R.J.)
Distribution: rec
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 21
Xref: mnetor rec.audio:2937 sci.electronics:1215

In article <1946@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes:
|In article <3755@watdcsu.waterloo.edu>, bmaraldo@watdcsu.waterloo.edu (Commander Brett Maraldo) writes:
||   What is it?
|	Mumetal (tm) is a registered tradename of Allegheny Ludlum Steel
|Corp.
|chromium, with the balance iron.  Mumetal exhibits an extremely high
|magnetic permiability, which makes it ideal for magnetic shielding
||
|	So the point is: Mumetal is pretty good stuff for shielding devices
|against stray magnetic fields.

However, it also saturates at a relatively low magnetic field.  It is
therefore best to use it in combination with a gross ferrous shield to
absorb the heavy-duty magnetic fields first.  The mumetal will take care
of the rest.

It's also grossly expensive stuff!
-- 
Rich Straka     ihnp4!ihlpf!straka

Advice for the day: "MSDOS - just say no."