Title :
Effect of particle size on the hydrogen-assisted disproportionation of Sm2(Fe,Ga)17-phase
Author :
Kwon, H.W. ; Shon, S.W.
Author_Institution :
Dept. of Mater. Sci. & Eng., Pukyong Nat. Univ., Pusan, South Korea
fDate :
9/1/2000 12:00:00 AM
Abstract :
Effect of particle size on the disproportionation of the Ga-stabilized Sm2Fe15Ga2 alloy was examined using a DTA and TPA under hydrogen gas, it was revealed that the hydrogen-assisted disproportionation of the Ga-stabilized Sm2 Fe15Ga2 alloy was influenced significantly by its particle size. The Sm2Fe15Ga2 alloy powder with finer particle size (<40 μm) was completely disproportionated by heating up to 800°C under hydrogen even with moderate pressure (1.8 kgf/cm2)
Keywords :
gallium alloys; iron alloys; particle size; permanent magnets; powder metallurgy; samarium alloys; 800 degC; DTA; Ga-stabilized Sm2Fe15Ga2 alloy; H-assisted disproportionation; Sm2Fe15Ga2; particle size; thermopiezic analysis; Argon; Gallium alloys; Heating; Hydrogen; Iron alloys; Magnetic materials; Permanent magnets; Powders; Samarium alloys; Thermal stability;
Journal_Title :
Magnetics, IEEE Transactions on
