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Magnetocaloric effect in Er-Al-Co bulk metallic glasses |
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| Authors: | HUI XiDong XU ZhiYi WU Yuan CHEN XiaoHua LIU XiongJun & LU ZhaoPing State Key Laboratory for Advanced Metals Materials University of Science Technology Beijing Beijing China |
| Affiliation: | HUI XiDong,XU ZhiYi,WU Yuan,CHEN XiaoHua,LIU XiongJun & LU ZhaoPing State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China |
| Abstract: | A series of Er-Al-Co bulk metallic glasses (BMGs) have been prepared by the copper mold casting method. The glass forming ability and magnetocaloric effect (MCE) for these alloys have been investigated. The second-order magnetic transition from para-magnetic to ferromagnetic states takes place at about 9 K. These BMGs exhibit excellent MCE because of their large effective magneton number; Er56Al24Co20 BMG has a maximum entropy change and refrigeration capacity of 16.06 J kg-1 K-1 and 546 J kg-1,respectively... |
| Keywords: | Er-Al-Co bulk metallic glasses magnetocaloric effect Curie temperature refrigeration capacity |
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