Title :
Analysis of hysteresis curves of samples with magnetite and hematite grains
Author :
P. Hejda;A. Kapicka;E. Petrovsky;B.A. Sjoberg
Author_Institution :
Dept. of Geomag., Geophysical Inst., Prague, Czech Republic
Abstract :
Magnetic hysteresis of mixtures of hematite (/spl alpha/-Fe/sub 2/O/sub 3/) and magnetite (Fe/sub 3/O/sub 4/) particles dispersed in diamagnetic NaCl are examined. Introducing a residual hysteresis curve it is shown that the overall hysteresis loop of bi-mineral mixture does not represent a simple sum of contributions corresponding to individual components, but is affected by interactions between magnetite and hematite grains.
Keywords :
"Magnetic analysis","Magnetic separation","Magnetic hysteresis","Ferrimagnetic materials","Minerals","Magnetic properties","Magnetic field measurement","Laboratories","Shape","Grain size"
Journal_Title :
IEEE Transactions on Magnetics
