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Robert Kohler Special user Fayetteville, Arkansas 520 Posts |
Is it possible to strengthen or weaken embedded magnets by exposing (or rubbing?)with other stronger - say rare earth - magnets?
We judge ourselves by our intentions - others judge us by our actions.....
<BR> <BR>B. Wilson |
scottjenkins Loyal user 218 Posts |
I heard somewhere that heat can weaken a magnet.
Scott Jenkins
Magician Member of the AMA Joe Porper's partner! |
Christopher Moro Special user 793 Posts |
Actually, any intense temperature change can affect the strength of a magnet. But I don't know anything about the effect another magnet will have.
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vpatanio Special user 515 Posts |
Also, a sharp smack on a hard surface will weaken magnets.
It could even completely ruin the magnetic pull, so be careful. This is not the best method to weaken a magnet, although in theory it should work. -Vinny |
Bill Palmer Eternal Order Only Jonathan Townsend has more than 24315 Posts |
Rare earth magnets are sensitive to extreme heat.
"The Swatter"
Founder of CODBAMMC My Chickasaw name is "Throws Money at Cups." www.cupsandballsmuseum.com |
Dave V Inner circle Las Vegas, NV 4824 Posts |
Some magnets are magnetized after they're formed by subjecting them to a strong magnetic field, so technically it's possible. It's not something I'd try at home though. You'd probably need some pretty detailed info on the properties of the magnet you're working on, and I don't think many people would have the equipment available to create a strong enough magnetic field to do the work.
No trees were killed in the making of this message, but a large number of electrons were terribly inconvenienced.
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Jerrine Special user Busking is work. 629 Posts |
While smacking a magnet will weaken it smacking a piece of iron repeatedly will magnetize it. You are rearranging the +'s and -'s into line, or out in the first case. Had a tiff with 5th grade teacher about this. She was amazed when I proved it. The question was "How to make a magnet?" and she marked my answer as wrong on a test. I had read ahead in the book. That day we all learned a little about science and teaching.
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Don Sautter New user Arizona 58 Posts |
And I think the heat required would be like using a blow torch on it - I don't think you could get to the needed heat with anything else. In essence you have to make the magnet hot enough for the atoms to re-align. I think it would be difficult to do so and get the right level of reduced magnatism.
I think it would be easy to overshoot if that makes sense. |
Dave V Inner circle Las Vegas, NV 4824 Posts |
That might work on an iron magnet, but not a rare earth mag. Temperatures over as little as 170 degrees will destroy them.
No trees were killed in the making of this message, but a large number of electrons were terribly inconvenienced.
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