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Composition of Magnet

thread340-239067

Composition of Magnet

Composition of Magnet

(OP)
Magnets that are believed to be NdFeB Grade N48 with nickel plating were sent to an independent laboratory to be analyzed for material content.   The resulting chemistry (sans plating) shows the composition to be:
Fe    67.1%
Nd    31.9%
B    1%
Given the above properties, is there any way to determine the Grade of this material (N48, N50, N50H, N48UH, etc. etc.)?  I don't believe that there is, however I'm being asked and before I give my less than optimistic response I'd like to hear from the experts.
 

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RE: Composition of Magnet

You are correct, there is no way to be sure of the grade of a material just by chemical analysis.

Chemical composition can give some hints about the coercivity (Dysprosium is sometimes substituted for Neodymium to boost coercivity), but that isn't enough to make even a reasonable estimate of the grade of material.

RE: Composition of Magnet

(OP)
MagMike,
Thanks for your help.

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