Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1613128 | Journal of Alloys and Compounds | 2014 | 4 Pages |
Abstract
CoPt alloys nanoparticles with different content of CoPt and Cu were prepared at various temperatures by sol-gel method. The L10 CoPt with 50 at.% Cu addition was obtained when the annealing temperature was 600 °C. Compared to the pure CoPt nanoparticles, no obvious coalescence was observed for the CoPt-Cu 50 at.% particles and particle sizes were uniform. Cu presence suppressed the activation energy from the chemically disordered face-centered cubic structure to face-centred tetragonal structure transformation and enhanced the ordered reaction. The magnetic properties of CoPt-Cu nanoparticles were also improved.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yaxin Wang, Xiaolong Zhang, Yang Liu, Shiquan Lv, Yuhong Jiang, Yongjun Zhang, Huilian Liu, Yanqing Liu, Jinghai Yang,