Journal
RARE METALS
Volume 38, Issue 4, Pages 306-311Publisher
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-016-0811-7
Keywords
Magnetic nanocomposites; SmCo5; Co; Three-step chemical synthesis
Funding
- National Natural Science Foundation of China [51471016]
- Key Natural Science Foundation of Beijing [2151002]
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A three-step chemical synthesis of SmCo5/Co nanocomposites was developed. Firstly, the Co-Sm(OH)(3)-Ca(OH)(2) precursors were prepared by co-precipitation. Secondly, SmCo5 particles were obtained by reductive annealing of the precursors. At last, the SmCo5/Co nanocomposites were achieved by chemical deposition based on SmCo5 particles. The SmCo5/Co nanocomposites contain hard magnetic phase of SmCo5 with about 100nm in size and soft magnetic phase of Co with about 8nm in size, exhibiting independent two-phase structure without alloying. Compared to that of single-phase SmCo5 particles, the saturation magnetization of SmCo5/Co nanocomposites is increased by 27.5%. The synthesis provides a new route to fabricate SmCo-based nanocomposites.
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