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Temperature dependence of PM materials
- To: femm mailing list <femm@xxxxxxxxxxxxxxx>
- Subject: Temperature dependence of PM materials
- From: David Meeker <dmeeker@xxxxxxxx>
- Date: Wed, 02 Oct 2002 13:16:35 -0400
- User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.1) Gecko/20020826
I'm looking at sort of an odd application in which it would be desirable
to have a PM material with a very strong temperature dependence.
Usually, the opposite is the desired property--one usually desires
magnetic materials that have as little temperature dependence as
possible so that small changes in operating temperature don't affect
machine performance. However, I'm curious to know if anyone has a
material in which the knee of the magnetization curve moves
significantly at fairly low temperatures, say in the 60C to 80C range.
Since this is sort of an odd requirement, I haven't been able to find
anything like this in my usual manufacturer's spec sheets and favorite
PM websites.
Dave.
--
David Meeker <http://femm.berlios.de/dmeeker>