Title :
Bulk magnetic hardening in Cu-added (SmCo5)1-x(Sm2Co17)x cast alloys
Author :
Gabay, A.M. ; Zhang, Y. ; Marinescu, M. ; Christodoulides, K. ; Hadjipayanis, G.C.
Author_Institution :
Dept. of Phys. & Astron., Delaware Univ., Newark, DE, USA
Abstract :
Establishing a possible link between magnetic hardening in Sm(Co,Cu)5 magnets and in the commercial "2:17" magnets was attempted. A series of ternary Sm-Co-Cu alloys with composition between Sm(Co,Cu)5 and Sm2Co17 which contain different ratios of 1:5 and 2:17 phases were investigated and their magnetic properties and microstructure were studied. Single phase ternary [Sm(Co0.6Cu0.4)5]1-x(Sm2Co17)x alloys were successfully homogenized at temperatures varying from 1050°C to 1240°C. The saturation magnetization and Curie temperature of the resulting disordered hexagonal structure increases while the coercivity decreases from 6.8 kOe to 0.7 kOe, with increasing x.
Keywords :
Curie temperature; cobalt alloys; coercive force; copper alloys; crystal microstructure; hardening; heat treatment; magnetic materials; samarium alloys; (Sm(Co0.6Cu0.4)5)1-x(Sm2Co17)x; 1050 to 1240 degC; Curie temperature; bulk magnetic hardening; cast alloys; coercivity; disordered hexagonal structure; magnetic properties; magnets; microstructure; saturation magnetization; single phase ternary alloys; Aging; Cobalt alloys; Iron alloys; Samarium alloys; Temperature;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464075
