Date: Mon, 20 Sep 1999 13:17:34 -0500 (CDT)

Author: Paul Nord

Subject: Sources for Mu-Metal?

Post:

Good Day,

We've got a rather inventive student who's trying to build himself a rail-gun.
He needs a high magnetic permiability material for the "bullet". Ideally, he'd
like a small bit of bar stock of Mu-Metal. All he can find is thin sheets or
suppliers who want a minimum order of 500kg.

Anyone know of any other sources? Suppliers? Parts of comercial products?
Any old magnets that use this stuff?

He's already found a 1F capacitor (actually the label lists is as 1,000,000UF).
It's about 10" long and 3" round. They sell them for car sterieos. These are
the guys that rattel your windows as they drive by. It's rated to 20V and can
be shorted across a very low resistance.

Paul Nord
Valparaiso University

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