[BH-max]

BH-max

The maximum energy density BH-max is the largest possible product of Bd and Hd on the demagnetization or hysteresis curve

In other words, in the second quadrant of the hysteresis loop. In general, the higher the BHmax of the magnetic material, the smaller the magnet required for a particular application.

How do you calculate the maximum product of the residual magnetism Br and the intrinsic coercivity Hcj in MGOe from the MH curve?

First transfer the M-H curve into the B-H curve, using B=mu0(H+M). Then calculate (B.H) and get the maximum value (BH). Make sure that all units are correct; B is in Oe, H is also in Oe.

The B-H curve is the curve that characterises the magnetic properties of a material, element or alloy. It tells you how the material reacts to an external magnetic field. This information is important when designing magnetic circuits.

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