수소환원법에 의한 나노구조 Fe-Co 합금분말 제조 및 특성

초록

Magnetic properties of nanostructured materials are affected by microstructure such as grain size (or particle size), internal strain and crystal structure. Thus, studies on the synthesis of nanostructured materials are necessary to make significant improvements in their magnetic properties. In this study, nanostructured Fe-20at.%Co and Fe-50at.%Co alloy powders were prepared by hydrogen reduction from the two oxide powder mixtures, Fe2O3 and Co3O4. Furthermore, the effect of microstructure on the magnetic properties of hydrogen reduced Fe-Co alloy powders was examined using XRD, SEM, TEM, and VSM.