A fellow I know has a highly technical (and potentially hilarious!) question bothering him:
*This is a little out there but I was having a discussion with my prof in my magnetic particles class on this.
From what I understand, when a material is magnetized for the first time, it will reach it’s saturation point with less magnetic force needed than it would for any times after that(The virgin curve).
Now my prof was saying that the virgin curve was a one-time thing. While a material can still reach that flux density, it won’t do it with so little force. Supposedly this is even if it’s de-magnetized but the problem there is that equipment won’t completely take out all the magneticism from an object. So first, I was wondering that in theory, if it could be completely de-magnetized, would it re-gain it’s ‘virginity’?
Then I figured, hell, why not just heat the metal to it’s curie point, cool it down and re-magnetize it? I would think this would be a sure way to re-gain the virgin curve. Not that I can really think of why someone would need to, but it was just one of those theoretical debates.
Anyone know the topic well enough to have an answer?*
Now I most certainly don’t, but I don’t doubt that someone here might.