DocumentCode :
1451713
Title :
Effects of Indium on PrCo 
Magnets Prepared by Powder Sintering and Hot-Deformation of Nanocrystalline Precursors
Author :
Gabay, Alexander M. ; Marinescu, Melania ; Liu, Jinfang ; Hadjipanayis, George C.
Author_Institution :
Dept. of Phys. & Astron., Univ. of Delaware, Newark, DE, USA
Volume :
45
Issue :
10
fYear :
2009
Firstpage :
4409
Lastpage :
4412
Abstract :
Small additions of indium are found to introduce low-melting-temperature phases in PrCo5 -based magnets. The sintering temperature of anisotropic powders with 0.5 at.% indium can be reduced from 1100degC to 950degC-975degC, resulting in increase of remanent magnetization of the optimally heat-treated sintered magnet from 9 to 10.7 kG with a simultaneous increase of the intrinsic coercivity from 6.7 to 9.1 kOe. In the magnets prepared by hot deformation of nanocrystalline precursors, the indium-induced grain-boundary phase(s) strongly promotes uniaxial alignment of the [100] direction rather than the desired [001] easy magnetization direction.
Keywords :
cobalt alloys; coercive force; deformation; grain boundaries; praseodymium alloys; remanence; sintering; PrCo5; grain-boundary phase; hot deformation; hot-deformation; intrinsic coercivity; powder sintering; remanent magnetization; sintering temperature; temperature 1100 degC to 950 degC; Cobalt alloys; coercive force; permanent magnets; rare earth alloys; remanence;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2009.2024124
Filename :
5257389
Link To Document :
