Title :
Magnetic hardening of PrCo5by oxide additives
Author :
Ghandehari, M.H. ; Golden, R.E. ; McNutt, K.L.
Author_Institution :
Union Oil Company of California Science & Technology Division, California USA
fDate :
9/1/1984 12:00:00 AM
Abstract :
Powder oxides, as sintering additives, have been found to increase the coercivity of PrCo5containing Sm-Co sintering aid. These additives inhibit grain growth of the 2-7 phase and produce lanthanide oxides during the sintering. Pr0.8Sm0.2Co5magnets containing 0.4-1 weight percent Cr2O3display magnetic properties similar to SmCo5Possible hardening mechanisms consistent with the observed effects are discussed.
Keywords :
Permanent magnet materials; Additives; Annealing; Argon; Coercive force; Grain size; Magnetic properties; Milling machines; Powders; Saturation magnetization; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1984.1063457
