Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1813699 | Physica B: Condensed Matter | 2007 | 4 Pages |
Abstract
The effects of Cu addition on the microstructure and coercivity (iHc) of melt-spun annealed ribbons of Nd13.5Fe(74.9âz)Co5.5CuzB6 (z=0.0-0.54) alloys have been investigated. It was observed that Cu segregates to a nano-scale Nd-rich intergranular phase, causing effective change in the chemistry and morphology of grain boundary phase. As a result, the coercivity, at first decreases (up to 0.18Â at% Cu), then gradually improved with the increase of Cu concentration. The effects of the microalloyed element on the coercivity are discussed based on the magnetic and microstructural changes measured and observed by a vibrating sample magnetometer (VSM), a transmission electron microscope (TEM), and a three-dimensional atom probe (3DAP).
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
R. Gholamipour, A. Beitollahi, V.K. Marghusian, T. Ohkubo,