Talk:Mu-metal

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Why does the M-1040 link connect to the page for the compound Melatonin? —Preceding unsigned comment added by 24.7.69.210 (talk) 01:20, 19 December 2007 (UTC)

I'd have to say that Monster Magnet is my favourite... oh, sorry. -Ashley Pomeroy 20:03, 21 August 2005 (UTC)

[edit] More info please

How thick of a sheet of mu-metal would be needed to block an average magnet? Is it feasible to wrap a drawer with mu-metal to protect magnetic tapes? Can you bend and mold mu-metal? There is very little information about the use of mu-metal in this article. --Kainaw ^(talk) 21:08, 8 December 2005 (UTC)

I have very little experience in actually working with Mu Metal, since all of my stuff is built for me, but I'm under the impression that it is not easy to work with in terms of bending and molding (I believe it's a laminate of many thin layers of slightly different nickel-iron alloys, but I could very well be wrong there). As for thickness, it doesn't take very much: a ~1/16" thick full enclosure will probably attenuate fields by a factor of 100 or so. However, it is a very expensive metal to wrap a drawer in. For less stringent shielding, several companies sell a "foil" version that can be bent. What sort of "average" magnet do you need to protect your tapes from? Most fridge magnets can't harm magnetic media beyond a few centimetres, but if you happen to live beside a quaintly unshielded NMR magnet... Potatophysics 15:40, 15 February 2006 (UTC)

Yeah, it's probably more cost-effective to line your drawer with sheet steel from the hardware store. Or you could compromise and pry the laminate sheets out of an old transformer, if you're careful about all the nasty halogenated chemicals involved.--Joel 21:32, 8 May 2007 (UTC)

It's not easy to bend, in my experience. At right angles and flat surfaces it's not too bad. — Omegatron 13:47, 11 May 2007 (UTC)

Considering the rate at which magnetic field strength drops off over space, it might just be cheaper to make a shelf in a large enough hollow container. Alvis 05:00, 11 September 2007 (UTC)

[edit] Better composition numbers

Right now, the article totals over 100% per the composition of component metals (75% nickel, 15% iron, plus copper and molybdenum). Just how much copper and molybdenum does the final product consist of (and correspondingly less of nickel and iron)? Alvis 04:59, 11 September 2007 (UTC)

[edit] Discovery?

Could use some information on the history of Mu-metal, discovery, etc. —Preceding unsigned comment added by Morecromulent (talk • contribs) 05:44, 8 April 2008 (UTC)