Title :
Phase relations and magnetic properties of Co-rich alloys of the U-Co system
Author :
Gama, Sandra ; Sinnecker, E.H.C.P. ; Ribeiro, C.A. ; Cardoso, L.P. ; Torikachvili, M.S.
Author_Institution :
Inst. de Fisica Gleb Wataghin, Univ. Estadual de Campinas
fDate :
11/1/1993 12:00:00 AM
Abstract :
The phase relations for the Co-rich portion of the system U-Co using as-cast samples and heat-treated ones at 700°C/530 h and 1000°C/310 h are studied. The results confirm the Co-rich eutectic point at 13 at.% U, the interval 16.1 to 17.2 at.% U as the solubility range for the U2Co11 phase, and three magnetic transitions for alloys containing this phase. The importance of the thermomechanical history of the samples for the appearance of the magnetic transitions is indicated
Keywords :
cobalt alloys; ferromagnetic properties of substances; heat treatment; magnetic transitions; permanent magnets; phase equilibrium; solid solubility; uranium alloys; 1000 degC; 310 hours; 530 hours; 700 degC; Co-rich alloys; Co-rich eutectic point; U-Co system; U2Co11 phase; as-cast samples; heat treatment; magnetic properties; magnetic transitions; phase relations; solubility range; thermomechanical history; Annealing; Coercive force; Grain boundaries; Magnetic domains; Magnetic liquids; Magnetic properties; Morphology; Pressing; Stress;
Journal_Title :
Magnetics, IEEE Transactions on
