Are there any metallurgists here?

BaDaBooM

Golden Member
May 3, 2000
1,077
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0
Had a quick question. What is the best kind of metal (plated or alloy) to use for magnetic sheilding that, 1) is very strong (can hold it's shape under force even when cut thin) and 2) is highly resistive to obtaining its own magnetic field? Quiz time... anybody know? :) Thanks.
 

spanner

Senior member
Jun 11, 2001
464
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If you really want the best then I guess its titanium (strength wise). Any non magnetic metal is a good sheild , titanium is expensive, Aluminium is good
 

loup garou

Lifer
Feb 17, 2000
35,132
1
81
This stuff.

Also, the material doesn't have to be nonmagnetic to shield from magnetism. The mechanism used to move the arms/heads of your hard drive contain at least one extremely powerful NIB (Neodymium Iron Boron) magnet. These magnets are held in place by metal shielding (I think it's nickel plated steel). While the magnets are glued to the shielding, they will not attract anything ferrous through the shielded side (and won't erase your data ;)). However, if you remove shielding, the magnet will attract it (the shield itself)! :confused: I believe it has to do with the shape of the shielding and the makeup of the steel.
 

Hayabusa Rider

Admin Emeritus & Elite Member
Jan 26, 2000
50,879
4,268
126
virtually every non magnetic material will admit magnetic flux. Sheet metal can work well depending on your needs.
 

IGBT

Lifer
Jul 16, 2001
17,976
141
106
I'am looking for a non ferrous metals magnet..any ideas??
 

Evadman

Administrator Emeritus<br>Elite Member
Feb 18, 2001
30,990
5
81
bronze or nickel probably would be the most cost effective.

<edit>
I soo can not spell.