Title :
Anomalous thermal expansion of Sm2Fe15Si2
Author :
Lin, Chin ; Sun, Yun-Xi ; Liu, Zun-Xiao ; Jiang, Hong-Wei ; Liu, Zhao-Hui
Author_Institution :
Dept. of Phys., Peking Univ., Beijing, China
fDate :
9/1/1992 12:00:00 AM
Abstract :
Crystallographic and magnetic properties of Sm2Fe17-xSix with x=0, 0.5, 1.0, 1.5, 2.0, and 2.5 have been investigated. X-ray diffraction and thermomagnetic analyses showed that all samples studied are single-phase with Th2Zn17 structure. The Curie temperature increases with increasing Si content, although the lattice parameters decrease. Anomalous thermal expansion of Sm2Fe15Si 2 was observed below Curie temperature by high-temperature X-ray diffraction experiments
Keywords :
Curie temperature; X-ray diffraction examination of materials; ferromagnetic properties of substances; iron alloys; lattice constants; magnetocaloric effects; samarium alloys; silicon alloys; thermal expansion; Curie temperature; Sm2Fe17-xSix; X-ray diffraction; crystallographic properties; lattice parameters; magnetic properties; thermal expansion; thermomagnetic analyses; Crystallography; Iron; Lattices; Magnetic analysis; Magnetic properties; Samarium; Saturation magnetization; Temperature distribution; Thermal expansion; X-ray diffraction;
Journal_Title :
Magnetics, IEEE Transactions on
