Title :
Sintered Sm2(Co, Fe,Cu,Zr)17 magnets with light rare earth substitutions
Author :
Liu, S. ; Ray, A.E. ; Mildrum, H.F.
Author_Institution :
Res. Inst., Dayton Univ., OH, USA
fDate :
9/1/1990 12:00:00 AM
Abstract :
The effects of partial substitution of light rare earths for Sm in (Sm1-xRx)2 (Co,Fe,Cu,Zr)17 have been investigated where R=Ce, Pr, Nd, Pr0.5Nd 0.5, Ce0.2Pr0.4Nd0.4 and x=0-0.5. Experiments show that both remanence and maximum energy product are improved for x=0.1-0.2, depending upon compositions and heat treatments. For a composition Sm0.8R0.2(Co0.633Fe0.286 Cu0.061Zr0.020)7.59 with R =Ce0.2Pr0.4Nd0.4, the authors obtained Br=11.57 kG, MHc =15.5 kOe, BHc=10.33 kOe, Hk=10.03 kOe, and (BH)max=30 MGOe
Keywords :
alloying additions; cobalt alloys; coercive force; copper alloys; ferromagnetic properties of substances; iron alloys; permanent magnets; rare earth alloys; remanence; samarium alloys; zirconium alloys; Sm2(CoFeCuZr)17; light rare earths; maximum energy product; partial substitution; remanence; Coercive force; Demagnetization; Iron; Magnetic properties; Magnetization; Neodymium; Permanent magnets; Powders; Remanence; Samarium alloys;
Journal_Title :
Magnetics, IEEE Transactions on
