| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Effect of Minor Co Substitution for Ni on the Glass Forming Ability and Magnetic Properties of Gd55Al20Ni25 Bulk Metallic Glass |
| WANG Peng1, CHAN Kang-Cheung2, LU Shuang1, TANG Mei-Bo3, XIA Lei1,2** |
1Laboratory for Microstructure, Shanghai University, Shanghai 200072
2Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
3Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 |
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| Cite this article: |
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WANG Peng, CHAN Kang-Cheung, LU Shuang et al 2012 Chin. Phys. Lett. 29 096103 |
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Abstract Element substitution is usually used to improve the glass forming ability (GFA) and magnetic properties of alloys. We obtain Gd55Al20Ni20Co5 bulk metallic glass (BMG) by minor Co substitution for Ni in the Gd55Al20Ni25 glass-forming alloy. The Gd55Al20Ni20Co5 BMG exhibits a better GFA and magnetocaloric effect (MCE) than the Gd55Al20Ni25 BMG. The mechanism for the enhanced magnetic entropy change and refrigeration capacity of the Gd55Al20Ni20Co5 BMG is investigated.
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Received: 27 February 2012
Published: 01 October 2012
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| PACS: |
61.43.Dq
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(Amorphous semiconductors, metals, and alloys)
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81.05.Kf
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(Glasses (including metallic glasses))
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75.30.Sg
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(Magnetocaloric effect, magnetic cooling)
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81.20.-n
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(Methods of materials synthesis and materials processing)
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