A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites
We report a Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composite with improved mechanical and magnetocaloric properties. La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 powders with a bimodal particle size distribution were mixed with a binder of Sn powder and hot pressed at a relatively low temperature of...
| Main Authors: | , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/140719 |
| _version_ | 1811680253104357376 |
|---|---|
| author | Zhong, Xi Chun Feng, X. L. Huang, Jiao Hong Jiao, Dong Ling Zhang, Hu Qiu, Wan Qi Liu, Zhong Wu Ramanujan, Raju Vijayaraghavan |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Zhong, Xi Chun Feng, X. L. Huang, Jiao Hong Jiao, Dong Ling Zhang, Hu Qiu, Wan Qi Liu, Zhong Wu Ramanujan, Raju Vijayaraghavan |
| author_sort | Zhong, Xi Chun |
| collection | NTU |
| description | We report a Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composite with improved mechanical and magnetocaloric properties. La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 powders with a bimodal particle size distribution were mixed with a binder of Sn powder and hot pressed at a relatively low temperature of 423 K (150 °C). The use of bimodal size-distributed powder can reduce the non-magnetic Sn content. A bimodal particle size distribution of coarse particles (180–250 μm) and fine powders (<45 μm) resulted in particle integrity even after hot pressing. The maximum values of magnetic entropy change (−ΔSM) and adiabatic temperature change (ΔTad) increased from 7.96 J/(kg·K) (2 T), and 2.05 K (1.4 T) to 8.71 J/kg and 2.14 K, respectively, due to this microstructure. The optimized composite exhibited an enhanced compressive strength of 224 MPa and a large (−ΔSM)max of 8.71 J/(kg·K) as well as an excellent thermal conductivity of about 8.05 W/(m·K). |
| first_indexed | 2024-10-01T03:22:06Z |
| format | Journal Article |
| id | ntu-10356/140719 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:22:06Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1407192020-06-01T10:43:37Z A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites Zhong, Xi Chun Feng, X. L. Huang, Jiao Hong Jiao, Dong Ling Zhang, Hu Qiu, Wan Qi Liu, Zhong Wu Ramanujan, Raju Vijayaraghavan School of Materials Science & Engineering Singapore-HUJ Alliance for Research and Enterprise Nanomaterials for Energy and Energy-Water Nexus Campus for Research Excellence and Technological Enterprise Engineering::Materials Magnetocaloric Effect Composite Materials We report a Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composite with improved mechanical and magnetocaloric properties. La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 powders with a bimodal particle size distribution were mixed with a binder of Sn powder and hot pressed at a relatively low temperature of 423 K (150 °C). The use of bimodal size-distributed powder can reduce the non-magnetic Sn content. A bimodal particle size distribution of coarse particles (180–250 μm) and fine powders (<45 μm) resulted in particle integrity even after hot pressing. The maximum values of magnetic entropy change (−ΔSM) and adiabatic temperature change (ΔTad) increased from 7.96 J/(kg·K) (2 T), and 2.05 K (1.4 T) to 8.71 J/kg and 2.14 K, respectively, due to this microstructure. The optimized composite exhibited an enhanced compressive strength of 224 MPa and a large (−ΔSM)max of 8.71 J/(kg·K) as well as an excellent thermal conductivity of about 8.05 W/(m·K). 2020-06-01T09:19:50Z 2020-06-01T09:19:50Z 2018 Journal Article Zhong, X. C., Feng, X. L., Huang, J. H., Jiao, D. L., Zhang, H., Qiu, W. Q., . . . Ramanujan, R. V. (2019). A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites. Journal of Magnetism and Magnetic Materials, 469, 133-137. doi:10.1016/j.jmmm.2018.08.053 0304-8853 https://hdl.handle.net/10356/140719 10.1016/j.jmmm.2018.08.053 2-s2.0-85052070383 469 133 137 en Journal of Magnetism and Magnetic Materials © 2018 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering::Materials Magnetocaloric Effect Composite Materials Zhong, Xi Chun Feng, X. L. Huang, Jiao Hong Jiao, Dong Ling Zhang, Hu Qiu, Wan Qi Liu, Zhong Wu Ramanujan, Raju Vijayaraghavan A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites |
| title | A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites |
| title_full | A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites |
| title_fullStr | A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites |
| title_full_unstemmed | A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites |
| title_short | A bimodal particle size distribution enhances mechanical and magnetocaloric properties of low-temperature hot pressed Sn-bonded La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2 bulk composites |
| title_sort | bimodal particle size distribution enhances mechanical and magnetocaloric properties of low temperature hot pressed sn bonded la0 8ce0 2 fe0 95co0 05 11 8si1 2 bulk composites |
| topic | Engineering::Materials Magnetocaloric Effect Composite Materials |
| url | https://hdl.handle.net/10356/140719 |
| work_keys_str_mv | AT zhongxichun abimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT fengxl abimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT huangjiaohong abimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT jiaodongling abimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT zhanghu abimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT qiuwanqi abimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT liuzhongwu abimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT ramanujanrajuvijayaraghavan abimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT zhongxichun bimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT fengxl bimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT huangjiaohong bimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT jiaodongling bimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT zhanghu bimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT qiuwanqi bimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT liuzhongwu bimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites AT ramanujanrajuvijayaraghavan bimodalparticlesizedistributionenhancesmechanicalandmagnetocaloricpropertiesoflowtemperaturehotpressedsnbondedla08ce02fe095co005118si12bulkcomposites |