Collaborative enhancement of thermal diffusivities and mechanical properties of Csf-Cu/Mg composites via introducing Cu coating with different thicknesses
Mg alloy matrix composites reinforced with short carbon fibers (Csf/Mg) are considered as potential candidates for integrated structural-functional electronic parts that satisfy the requirements of lightweight, excellent mechanical properties, and heat dissipation. However, the different characteris...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956724000197 |
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| author | Yuan Ma Lingjun Guo Jiancheng Wang Baolin Chen Lehua Qi Hejun Li |
| author_facet | Yuan Ma Lingjun Guo Jiancheng Wang Baolin Chen Lehua Qi Hejun Li |
| author_sort | Yuan Ma |
| collection | DOAJ |
| description | Mg alloy matrix composites reinforced with short carbon fibers (Csf/Mg) are considered as potential candidates for integrated structural-functional electronic parts that satisfy the requirements of lightweight, excellent mechanical properties, and heat dissipation. However, the different characteristics of Csf and Mg alloy make the interface a critical issue affecting the synergistic improvement of thermal and mechanical properties of the composites. Here, Cu coating with different thicknesses is introduced to modify the Csf/Mg interface, so as to simultaneously enhance the thermal and mechanical performances, which can combine the advantages of coating modification and matrix alloying. Results reveal that thermal diffusivity (TD) of 3-Csf-Cu/Mg composites is as high as 22.12 mm2/s and an enhancement of 52.97% is achieved compared with Csf/Mg composites, as well as 16.3% enhancement of ultimate compressive strength (UCS) in the longitudinal direction, 8.84% improvement of UCS in the transverse direction, and 53.08% increasement of ultimate tensile strength (UTS). Such improvement can be ascribed to the formation of intermetallic compounds. The formation of intermetallic compounds can not only effectively alleviate the lattice distortion of the matrix and decrease interfacial thermal resistance, but also bear the loads. Our work is of great significance for designing Csf/Mg composites with integrated structure and function. |
| format | Article |
| id | doaj-art-4166345f77c245d5ae1c7fb61e5c5b54 |
| institution | Kabale University |
| issn | 2213-9567 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj-art-4166345f77c245d5ae1c7fb61e5c5b542025-02-06T05:11:37ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672025-01-01131229242Collaborative enhancement of thermal diffusivities and mechanical properties of Csf-Cu/Mg composites via introducing Cu coating with different thicknessesYuan Ma0Lingjun Guo1Jiancheng Wang2Baolin Chen3Lehua Qi4Hejun Li5State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR ChinaState Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China; Corresponding authors.State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR ChinaSchool of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR ChinaSchool of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China; Corresponding authors.State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR ChinaMg alloy matrix composites reinforced with short carbon fibers (Csf/Mg) are considered as potential candidates for integrated structural-functional electronic parts that satisfy the requirements of lightweight, excellent mechanical properties, and heat dissipation. However, the different characteristics of Csf and Mg alloy make the interface a critical issue affecting the synergistic improvement of thermal and mechanical properties of the composites. Here, Cu coating with different thicknesses is introduced to modify the Csf/Mg interface, so as to simultaneously enhance the thermal and mechanical performances, which can combine the advantages of coating modification and matrix alloying. Results reveal that thermal diffusivity (TD) of 3-Csf-Cu/Mg composites is as high as 22.12 mm2/s and an enhancement of 52.97% is achieved compared with Csf/Mg composites, as well as 16.3% enhancement of ultimate compressive strength (UCS) in the longitudinal direction, 8.84% improvement of UCS in the transverse direction, and 53.08% increasement of ultimate tensile strength (UTS). Such improvement can be ascribed to the formation of intermetallic compounds. The formation of intermetallic compounds can not only effectively alleviate the lattice distortion of the matrix and decrease interfacial thermal resistance, but also bear the loads. Our work is of great significance for designing Csf/Mg composites with integrated structure and function.http://www.sciencedirect.com/science/article/pii/S2213956724000197Magnesium matrix compositesCu coating thicknessIntermetallic compoundsThermal performancesMechanical properties |
| spellingShingle | Yuan Ma Lingjun Guo Jiancheng Wang Baolin Chen Lehua Qi Hejun Li Collaborative enhancement of thermal diffusivities and mechanical properties of Csf-Cu/Mg composites via introducing Cu coating with different thicknesses Journal of Magnesium and Alloys Magnesium matrix composites Cu coating thickness Intermetallic compounds Thermal performances Mechanical properties |
| title | Collaborative enhancement of thermal diffusivities and mechanical properties of Csf-Cu/Mg composites via introducing Cu coating with different thicknesses |
| title_full | Collaborative enhancement of thermal diffusivities and mechanical properties of Csf-Cu/Mg composites via introducing Cu coating with different thicknesses |
| title_fullStr | Collaborative enhancement of thermal diffusivities and mechanical properties of Csf-Cu/Mg composites via introducing Cu coating with different thicknesses |
| title_full_unstemmed | Collaborative enhancement of thermal diffusivities and mechanical properties of Csf-Cu/Mg composites via introducing Cu coating with different thicknesses |
| title_short | Collaborative enhancement of thermal diffusivities and mechanical properties of Csf-Cu/Mg composites via introducing Cu coating with different thicknesses |
| title_sort | collaborative enhancement of thermal diffusivities and mechanical properties of csf cu mg composites via introducing cu coating with different thicknesses |
| topic | Magnesium matrix composites Cu coating thickness Intermetallic compounds Thermal performances Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2213956724000197 |
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