Encyclopedia Magnetica™

The optimum operating point P for a permanent magnet is where the product of B and H reaches the maximum BHmax.

The drawing is based on:

Marcin Leonowicz, Jerzy J. Wysłocki, Modern magnets, Technologies, Coercivity mechanisms, Applications (in Polish: Współczesne magnesy, Technologie, Mechanizmy koercji, Zastosowania), Wydawnictwa Naukowo-Techniczne, Warsaw, 2005, ISBN 8320430496
Rainer Hilzinger, Werner Rodewald, Magnetic Materials, Fundamentals, Products, Properties, Applications, VAC Vacuumschmelze, Publicis, 2013, ISBN 9783895783524
Arnold Magnetic Technologies, TECHNotes, The Vocabulary of Magnetism, 2016, {accessed 2021-05-02}

permanent_magnet_bhmax_curve_magnetica.png

You are permitted and indeed encouraged to use this image freely, for any legal purpose including commercial, and with any modifications (the permission is hereby given, so there is no need to ask for it explicitly again), but you MUST always give the following credits:

S. Zurek, Encyclopedia Magnetica, CC-BY-4.0

We would appreciate if you let us know of any use: info@e-magnetica.pl

Hard magnetic materials, Permanent magnet operating point, Permanent magnets, Saturation polarisation, Saturation, Jsat, B, J, H, JHc, BHc, Br, Jr, BHmax, Files