Question

700 Oe - 7000 Oe

Is this considered a very difficult magnetic material to demagnetize?

Answer 1

@gleem @Jemurray3

Answer 2

@Diwakar

Answer 3

That's a unit of measurement, so I have no idea what you're talking about.

Answer 4

@Jemurray3
lol, sorry for not clearing that out... Its the "Coercivity" of a new kind of magnet.
http://en.wikipedia.org/wiki/Coercivity

Answer 5

I've contacted a research group, they are developing a new kind of magnet that claims to be better than Neodymium, and its Iron Nitride.
A new way to reduce the dependence of "rare-earth" materials.
A link:
http://www.license.umn.edu/Products/Iron-Nitride-Permanent-Magnet--Alternative-to-Rare-Earth-and-Neodymium-Magnets__20120016.aspx

Answer 6

So I wondered about them, asking if they can handle an opposing magnetic field that is weak or strong would it demagnetize a magnet that easily, so I studied coercivities of current magnetic materials.
And asked them the coercivities of their new magnets they said its between 700-700 Oe
I guess they can handle pretty well.

Answer 7

I don't really know much about it, I'm afraid.

Answer 8

Ah :<

Answer 9

Well, Joe.
Do you think that generally a permanent magnet exposed to a magnetic field that opposes it. Would the magnet be demagnetized?

Answer 10

I know if the field is strong enough and the magnet is exposed for a while it will be.
But say it was a weaker field, and exposed for a short period of time but repeatedly would it demagnetize a magnet?

Answer 11

I suspect if the field was weak it would not have a measurable effect on the magnet.

Answer 12

I hope so, or even equal to the magnet I doubt it would effect it.

Answer 13

I think you need to apply a greater field only to demagnetize a permanent magnet I guess :)