Title :
Microstructure and magnetoelasticity of melt-spun Sm1-xPrxFe2 and Sm0.9Pr0.1(Fe1-yBy)2 alloys
Author :
Wang, B.W. ; Busbridge, S.C. ; Yan, R.G. ; Cao, S.Y. ; Huang, W.M.
Author_Institution :
Sch. of Electr. Eng., Hebei Univ. of Technol., Tianjin, China
fDate :
7/1/2004 12:00:00 AM
Abstract :
The microstructure and magnetoelasticity of melt-spun Sm1-xPrxFe2 and Sm0.9Pr0.1(Fe1-yBy)2 alloys have been investigated using X-ray diffraction, transmission electron microscopy, three-terminal capacitance and standard strain gauge techniques. The microstructure of melt-spun Sm1-xPrxFe2 and Sm0.9Pr0.1(Fe1-yBy)2 is a mixture of (Sm,Pr)Fe2/(Sm,Pr)(Fe,B)2 crystalline and amorphous phases. The amount of amorphous phase with increasing Pr or B content. The microstructure of Sm0.9Pr0.1(Fe0.8B0.2)2 is almost entirely amorphous phase. The magnetostriction of melt-spun Sm1-xPrxFe2 remains almost unchanged when x<0.1 but decreases with increasing x when x>0.1. The magnetostriction of Sm0.9Pr0.1(Fe1-yBy)2 decreases with increasing y in high magnetic fields, but increases with increasing y in low fields (H<400 kA/m) due to the existence of the amorphous phase.
Keywords :
X-ray diffraction; magnetoelastic effects; magnetostriction; praseodymium alloys; samarium alloys; transmission electron microscopy; Sm0.9Pr0.1(Fe0.8B0.2)2; Sm0.9Pr0.1(Fe1-yBy)2; Sm1-xPrxFe2; X-ray diffraction; amorphous phases; capacitance; crystalline phases; magnetoelasticity; magnetostriction; melt-spun; microstructure; rare-earth iron compound; standard strain gauge techniques; transmission electron microscopy; Amorphous materials; Capacitance; Iron alloys; Magnetic force microscopy; Magnetoelasticity; Magnetostriction; Microstructure; Samarium alloys; Transmission electron microscopy; X-ray diffraction; Rare-earth iron compound; magnetoelastic; magnetostriction; melt-spun ribbon;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.830233
