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# RE: [femm] Re: Permanent Magnet Modeling

- To: <femm@yahoogroups.com>
- Subject: RE: [femm] Re: Permanent Magnet Modeling
- From: "Jeff Tola" <jtola@afetech.com>
- Date: Wed, 15 Aug 2001 07:51:30 -0700
- Importance: Normal
- In-reply-to: <12a.2bf0669.28ab491c@aol.com>

David, Thanks a lot! I was looking to save time and Sebastia's materials library was exactly what I needed for some directional information. My results so far have been amazing! My first prototype (rotational position sensor) worked as predicted "right out of the box"!!!! Thank you for this valuable tool! Best Regards, Jeff -----Original Message----- From: dcm3c@aol.com [mailto:dcm3c@aol.com] Sent: Tuesday, August 14, 2001 8:40 PM To: femm@yahoogroups.com Subject: [femm] Re: Permanent Magnet Modeling --- In femm@y..., afetech@y... wrote: > Does anyone have models for permanent magnet materials > other than the ones included. I am particularly interested in > ferrite and ceramic magnets. > > Thank you, in advance. > > Jeff Tola > FE Technical Services Sebastia Jardi has put up some information on various types of PM materials (including different grades of ceramic magnets) gathered from several sources at: http://www.fut.es/~sje/femmpmm.htm There are also some manufacturers who have some pdfs with demagnetization curves for ferrite magnets. These provide more detailed information on the magnet properties as well as curves for different temperatures. Group Arnold seems to have the most info online about this type of magnet. http://www.grouparnold.com/products/ferrite/ferrite_catalogs.htm http://www.grouparnold.com/products/ferrite/pdf/arnoxcat.pdf http://www.grouparnold.com/products/ferrite/pdf/jmpferritecat.pdf Also, a pretty neat document I recently ran across is "Permanent Magnet Guidelines" that contains a lot of great information about permanent magnets: http://www.duramag.com/engmach/MMPA%20PMG-88.pdf Dave Meeker -- http://members.aol.com/_ht_a/dcm3c

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  - Re: Permanent Magnet Modeling
    - From: dcm3c@aol.com

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