EVALUATION OF TEXTURE PARAMETERS IN NDFEB MAGNETS BY MEANS OF X-RAY AND MAGNETIC MEASUREMENTS

NdFeB samples of different texture degree were prepared by uniaxial pr essing in a magnetic field of different strength. Afterwards, the text ure formation was investigated by means of X-ray diffraction. Usually, a fibre texture with the basal plane (001) perpendicular to the appli ed magnetic field is expected from the used compaction process. Howeve r, by introducing a two-parameter Gauss-function describing the textur e, deviations from the rotational symmetry of the texture are found. T he texture parameters sigma are compared with those obtained by a fit of demagnetization curves. Knowing the intrinsic magnetic properties o f the investigated material, demagnetization curves in the first quadr ant of the J-H-plane can be calculated on the basis of the texture par ameters.