Title :
Growth and magnetostriction of oriented polycrystalline Pr0.15 TbxDy0.85-xFe2 (x=0-0.85)
Author :
Li, Y.X. ; Hao, Y.M. ; Wang, B.M. ; Yu, Hui ; Gao, Y. ; Xu, G.Z. ; Qu, J.P. ; Wu, G.H. ; Tang, C.C. ; Chen, J.L. ; Zhan, W.S.
Author_Institution :
Sch. of Mater. Sci. & Eng., Hebei Univ. of Technol., Tianjin, China
fDate :
7/1/2001 12:00:00 AM
Abstract :
Oriented polycrystalline materials of Pr0.15Tbx Dy0.85-xFe2 have been obtained by the Czochralski method with the cold crucible system under a purified-argon atmosphere. Experiments were carried out over a wide range, and the conditions, including growth of 30-10 mm/hr and temperature gradient of 110-140°C/cm, have been optimized for oriented polycrystalline materials growth. The magnetostrictive properties of Pr0.15Tb xDy0.85-xFe2 were found to be very sensitive to both the Pr stoichiometry and to the Tb/Dy ratio. The measurement results reveal that the oriented polycrystalline materials of Pr0.15Tb0.2Dy0.65Fe2 possess large magnetostriction at room temperature
Keywords :
crystal growth from melt; dysprosium alloys; ferromagnetic materials; iron alloys; magnetostriction; praseodymium alloys; terbium alloys; Czochralski method; Laves phase; Pr0.15(TbDy)0.85Fe2; Pr0.15TbxDy0.85-xFe2; crystal growth; magnetostriction; oriented polycrystalline material; Anisotropic magnetoresistance; Atmosphere; Crystalline materials; Iron; Magnetic anisotropy; Magnetic materials; Magnetic properties; Magnetostriction; Perpendicular magnetic anisotropy; Temperature sensors;
Journal_Title :
Magnetics, IEEE Transactions on
