DETERMINATION OF SPD PEAK AMPLITUDE - APPLICATION TO THE EASY-AXIS DISTRIBUTION FUNCTION OF PERMANENT-MAGNETS

An operative method for the evaluation of the experimental SPD peak am plitudes, in the case of multidomain crystallites, is proposed and suc cessfully tested by computer numerical calculations. It consists in co mputing the difference in slope at the two inflection points situated on both sides of the peak (jump in d3M/dH3). The method is then applie d to the measurement of the easy-axis distribution functions of MnAl, BaFe12O19 and plastoferrite commercial magnets, allowing comparisons o f the quality of the degree of orientation achievable by different pro cessing procedures. The texture determination can be used as a quality check during the preparation of permanent magnets in order to optimiz e the technological processes involved.