The magnetocaloric effect in (Dy,Tb)Co2 alloys
Series of TbxDy1-xCo2 alloys (x=0.,0.,0.,0.,0.9) were prepared by arc-melting method. All the alloys were found to be the pure Laves phase, indicating the continuous solid (Dy,Tb)Co2 solution formed from DyCo2 and TbCo2. The maximal change of entropy DeltaSM decreases from 8.86 to 2.64J/kgK under ma...
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| Veröffentlicht in: | Journal of alloys and compounds 2007-08, Vol.441 (1-2), p.39-42 |
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| container_title | Journal of alloys and compounds |
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| creator | Gu, Kunming Li, Junqin Ao, Weiqin Jian, Yongxi Tang, Jiaoning |
| description | Series of TbxDy1-xCo2 alloys (x=0.,0.,0.,0.,0.9) were prepared by arc-melting method. All the alloys were found to be the pure Laves phase, indicating the continuous solid (Dy,Tb)Co2 solution formed from DyCo2 and TbCo2. The maximal change of entropy DeltaSM decreases from 8.86 to 2.64J/kgK under magnetic field change of 0-1.5T as Tb content increases from 0.1 to 0.9, due to the change of transition type from first-order to second-order. The results of Arrott plots and Inoue-Shimizu model confirmed the transition type changes from first-order to second-order occurs with Tb content x between 0.1 and 0.3. |
| doi_str_mv | 10.1016/j.jallcom.2006.09.125 |
| format | Article |
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All the alloys were found to be the pure Laves phase, indicating the continuous solid (Dy,Tb)Co2 solution formed from DyCo2 and TbCo2. The maximal change of entropy DeltaSM decreases from 8.86 to 2.64J/kgK under magnetic field change of 0-1.5T as Tb content increases from 0.1 to 0.9, due to the change of transition type from first-order to second-order. 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| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Magnetocaloric effect, magnetic cooling Physics |
| title | The magnetocaloric effect in (Dy,Tb)Co2 alloys |
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