Title :
Phase distribution and magnetic properties of mechanically alloyed Sm-Fe
Author :
Murillo, N. ; Gonzalez, Jose ; Cebollada, F. ; Martin, V.E. ; Gonzalez, J.M. ; Schultz, L.
Author_Institution :
Dept. de Fisica de Mater., Univ. del Pais Vasco, Sebastian, Spain
fDate :
11/1/1993 12:00:00 AM
Abstract :
Samples of nominal composition SmxFe100-x (10<x<50) are prepared by mechanical alloying starting from pure elements. The phase distribution, thermal stability and hysteretic properties of the samples are studied by using X-ray diffractometry, differential scanning calorimetry and magnetometric techniques, respectively. The obtained results make evident that the as-milled material is formed essentially by a mixture of an amorphous Sm-Fe phase and α-Fe, the relative amount of amorphous phase being larger for larger Sm contents. Upon crystallization of the amorphous phase, coercivities on the order of 0.7 T are developed
Keywords :
X-ray diffraction examination of materials; coercive force; crystallisation; ferromagnetic properties of substances; iron alloys; magnetic hysteresis; mechanical alloying; permanent magnets; phase equilibrium; samarium alloys; thermal analysis; α-Fe; SmxFe100-x; X-ray diffractometry; amorphous Sm-Fe phase; as-milled material; coercivities; crystallization; differential scanning calorimetry; hysteretic properties; magnetic properties; magnetometric techniques; mechanically alloyed Sm-Fe; phase distribution; thermal stability; Alloying; Amorphous magnetic materials; Amorphous materials; Calorimetry; Crystalline materials; Iron; Magnetic hysteresis; Magnetic properties; Thermal stability; X-ray diffraction;
Journal_Title :
Magnetics, IEEE Transactions on
