TY - JOUR

T1 - Magnetization surfaces in (M, H, M) space

AU - Street, R.

AU - Mccormick, Paul

AU - Folks, L.

AU - Newman, R.

PY - 1992

Y1 - 1992

N2 - Thermal activation of magnetization processes leads to time dependence of intensity of magnetization, M. The description of the equation of state of a magnetized material thus requires the specification of the time rate of change of magnetization, M, in addition to M and the magnetic field, H. The magnetic state can be derived from a constitutive equation, the solutions of which are represented by surfaces in three-dimensional (M, H, M) space. Magnetization behaviour, subject to such conditions as constant H, constant H and constant M, is given by trajectories on the (M, H, M) surfaces. A computer generated (M, H, M) surface derived from experimental data on sintered Pr15Fe77B8 has been calculated. The variations of M vs. H under conditions of constant M and of constant H are derived from trajectories on this surface and they are compared with direct experimental data.

AB - Thermal activation of magnetization processes leads to time dependence of intensity of magnetization, M. The description of the equation of state of a magnetized material thus requires the specification of the time rate of change of magnetization, M, in addition to M and the magnetic field, H. The magnetic state can be derived from a constitutive equation, the solutions of which are represented by surfaces in three-dimensional (M, H, M) space. Magnetization behaviour, subject to such conditions as constant H, constant H and constant M, is given by trajectories on the (M, H, M) surfaces. A computer generated (M, H, M) surface derived from experimental data on sintered Pr15Fe77B8 has been calculated. The variations of M vs. H under conditions of constant M and of constant H are derived from trajectories on this surface and they are compared with direct experimental data.

U2 - 10.1016/0304-8853(92)90838-F

DO - 10.1016/0304-8853(92)90838-F

M3 - Article

VL - 104

SP - 371

EP - 372

JO - Journal of Magnetism & Magnetic Materials

JF - Journal of Magnetism & Magnetic Materials

SN - 0304-8853

ER -