【摘 要】
：
The ingots of Pr0.15TbxDy0.85-xFe2 (x=0.100.85) series compounds with a single phase were prepared by a arc melting method. The X-ray diffraction patterns were
【机 构】
：
School of Materials Science and Engineering,State Key Laboratory for Magnetism
论文部分内容阅读
The ingots of Pr0.15TbxDy0.85-xFe2 (x=0.100.85) series compounds with a single phase were prepared by a arc melting method. The X-ray diffraction patterns were measured using a Philips Xpert MPD X-ray diffractometer with a non-ambient sample stage at different temperatures, the magnetostrictive distortion in Pr0.15TbxDy0.85-xFe2 polycrystals was investigated by X-ray diffraction patterns and the magnetostriction coefficient λ111 was calculated. The results show when the temperature is raised above the spin reorientation temperature region, a splitting appears in the reflection (440); the λ111 increase with the increasing of Tb content for Pr0.15TbxDy0.85-xFe2 polycrystals and the full width at half maximum (FWHM) of the reflection (440) increases gradually with the increasing of Tb content. Moreover, as the FWHM of the reflection (440) decreases gradually with the increasing of temperature, the λ111 decreases slightly with the increasing of temperature at the temperature region of 223373 K for Pr0.15Tb0.3Dy0.55Fe2 alloy.
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