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摘要
Dy(53.8)Co(17.3)Al(28.9) bulk metallic glass with a diameter of 3 mm exhibits spin-glass behavior and large coercivity and remanence. Hydrogenation of Dy(53.8)Co(17.3)Al(28.9) suppresses the magnetic transition temperature and removes coercivity and remanence because of the expansion of average interatomic distance. The advantage of large magnetic entropy changes (17.5 and 9.5 J/kg K for the field changes from 0 to 50, and from 0 to 20 kOe, respectively) without any hysteresis loss makes Dy(53.8)Co(17.3)Al(28.9) H(170.6) alloy a promising magnetic refrigerant.
- 出版日期2010-12-27
- 单位电子科技大学
