Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses
The thermal stability, magnetocaloric effect, and refrigerant capacity (RC) of Gd–Co–Ni metallic glasses were investigated. These alloys possess high glass transition temperature and crystallization temperature as well as a relatively wide supercooled liquid region ΔTx(ΔTx = Tx − Tg) (40–55 K). With...
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sg-ntu-dr.10356-952442023-07-14T15:49:32Z Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses Yu, Hongyu Zhang, Hua Zheng, Z. G. Zhong, X. C. Tang, P. F. Liu, Z. W. Zeng, D. C. Qiu, W. Q. Ramanujan, Raju V. School of Materials Science & Engineering The thermal stability, magnetocaloric effect, and refrigerant capacity (RC) of Gd–Co–Ni metallic glasses were investigated. These alloys possess high glass transition temperature and crystallization temperature as well as a relatively wide supercooled liquid region ΔTx(ΔTx = Tx − Tg) (40–55 K). With increasing the Co/Ni ratio, the Curie temperature TC of the amorphous Gd–Co–Ni increases from 140 K to 192 K. For a magnetic field change of 0–5 T, the maximum magnetic entropy change (−ΔSMmax) and RC values are in the range of 6.04–6.47 J kg−1 K−1 and 450–502 J kg−1, respectively. These values are comparable with that of La(Fe0.88Si0.12)13 and higher than those for the well known magnetic refrigerant Gd5Si2Ge1.9Fe0.1 alloy. The large magnetic entropy change and refrigerant capacity as well as high thermal stability make the alloys attractive candidates as magnetic refrigeration materials for service temperatures of 100–230 K. Published version 2013-02-21T07:19:56Z 2019-12-06T19:11:09Z 2013-02-21T07:19:56Z 2019-12-06T19:11:09Z 2012 2012 Journal Article Zhong, X. C., Tang, P. F., Liu, Z. W., Zeng, D. C., Zheng, Z. G., Yu, H., et al. (2012). Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses. Journal of Applied Physics, 111(7), 07A919-. 0021-8979 https://hdl.handle.net/10356/95244 http://hdl.handle.net/10220/9216 10.1063/1.3673422 en Journal of Applied Physics © 2012 American Institute of Physics. This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following official DOI: [http://dx.doi.org/10.1063/1.3673422]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
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The thermal stability, magnetocaloric effect, and refrigerant capacity (RC) of Gd–Co–Ni metallic glasses were investigated. These alloys possess high glass transition temperature and crystallization temperature as well as a relatively wide supercooled liquid region ΔTx(ΔTx = Tx − Tg) (40–55 K). With increasing the Co/Ni ratio, the Curie temperature TC of the amorphous Gd–Co–Ni increases from 140 K to 192 K. For a magnetic field change of 0–5 T, the maximum magnetic entropy change (−ΔSMmax) and RC values are in the range of 6.04–6.47 J kg−1 K−1 and 450–502 J kg−1, respectively. These values are comparable with that of La(Fe0.88Si0.12)13 and higher than those for the well known magnetic refrigerant Gd5Si2Ge1.9Fe0.1 alloy. The large magnetic entropy change and refrigerant capacity as well as high thermal stability make the alloys attractive candidates as magnetic refrigeration materials for service temperatures of 100–230 K. |
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School of Materials Science & Engineering |
| author_facet |
School of Materials Science & Engineering Yu, Hongyu Zhang, Hua Zheng, Z. G. Zhong, X. C. Tang, P. F. Liu, Z. W. Zeng, D. C. Qiu, W. Q. Ramanujan, Raju V. |
| format |
Article |
| author |
Yu, Hongyu Zhang, Hua Zheng, Z. G. Zhong, X. C. Tang, P. F. Liu, Z. W. Zeng, D. C. Qiu, W. Q. Ramanujan, Raju V. |
| spellingShingle |
Yu, Hongyu Zhang, Hua Zheng, Z. G. Zhong, X. C. Tang, P. F. Liu, Z. W. Zeng, D. C. Qiu, W. Q. Ramanujan, Raju V. Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses |
| author_sort |
Yu, Hongyu |
| title |
Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses |
| title_short |
Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses |
| title_full |
Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses |
| title_fullStr |
Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses |
| title_full_unstemmed |
Large magnetocaloric effect and refrigerant capacity in Gd–Co–Ni metallic glasses |
| title_sort |
large magnetocaloric effect and refrigerant capacity in gd–co–ni metallic glasses |
| publishDate |
2013 |
| url |
https://hdl.handle.net/10356/95244 http://hdl.handle.net/10220/9216 |
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1772826550108946432 |