file:coercivity_remanence_soft_magnetic_materials_magnetica

Typical hysteresis loop for a conventional grain-oriented electrical steel grade M4.

The blue point denotes remanence B_r = J_r (for H = 0). The green point denotes coercivity H_c (for B = J = 0).

Both remanence and coercivity should be measured after magnetic saturation, at which J_sat and M_sat is reached (does not increase anymore). There is no limiting magnetic flux density B_sat value because it will keep increasing as long as the applied magnetic field strength H is increasing.

This loop has a high squareness ratio.

coercivity_remanence_soft_magnetic_materials_magnetica.png

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

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Magnetic saturation, Coercivity Hc, Remanance Br Jr, Coercive force Hc, BHc, JHc, Jsat, Bsat, Msat, Hysteresis loop, B-H loop, J-H loop, M-H loop, first quadrant, second quadrant, third quadrant, fourth quadrant, Squareness ratio, Files