On 04/06/2013 01:21 PM, Magnus Danielson wrote:
On 04/06/2013 09:34 AM, Attila Kinali wrote:
On Fri, 5 Apr 2013 23:18:49 -0600 (MDT)
"Don Latham"<[email protected]> wrote:
Actually, mumetal easily loses permeability, hence shielding ability,
by mechanical stress or heat. Some mumetals are made to bend for boxes
and the like, sheets available from electronics goldmine, I think.
Actually, one of the questions i had in my head when waking up this
morning was: Mumetal is pretty sensitive to everything.. but how is
it machined if bending and heating damage it?
As mentioned on this list, you re-anneal it again.
Bruce has more details.
http://en.wikipedia.org/wiki/Mu-metal
http://www.magnetic-shield.com/pdf/mu-2.pdf
These links could be of further use:
http://www.magnetic-shield.com/science-research-and-education.html
http://www.magnetic-shield.com/faqs-all-about-shielding.html
Cheers,
Magnus
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