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# Alnico 8 relative permeability

- To: femm@yahoogroups.com
- Subject: Alnico 8 relative permeability
- From: "sloothrog <salvarsan@std.com>" <salvarsan@std.com>
- Date: Fri, 10 Jan 2003 19:17:20 -0000
- User-agent: eGroups-EW/0.82

    The FEMM materials library lists A8 relative permeability
    as 6.678, or about four times that of Alnico 5: mu == 1.5.

    My empirical testing puts the A8 relative permeability close
    to 1.3 in the absence of any other ferromagnetic work load.

    This is an important consideration in design of variable
    reluctance transducers.

    Can someone suggest any reference documents for Alnico 8
    relative permeability values?

    -drh
    --

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