Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1635446 | Rare Metals | 2006 | 5 Pages |
Abstract
The structural and magnetic properties of Tb2Fe15Cr2 compound were investigated by means of X-ray diffraction and magnetization measurements. Tb2Fe15Cr2 compound has a hexagonal Th2Ni17-type structure. Negative thermal expansion was found in Tb2Fe15Cr2 compound from 372 to 452 K by X-ray dilatometry. The coefficient of the average thermal expansion is = -3.14Ã10â5 Kâ1. The magnetostrictive deformations from 292 to 450 K were calculated. The result showed that the spontaneous volume magnetostrictive deformation ÏS remains nearly constant with increasing temperature up to 360 K, but decreases with the further increase of temperature. The spontaneous linear magnetostrictive deformation λc along the c axis decreases with increasing temperature. The spontaneous linear magnetostrictive deformation, λa, in the basal-plane increases with increasing temperature up to 360 K, but decreases with further increasing temperature.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
HAO Yanming, ZHOU Yan, ZHAO Miao,