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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.18698 |
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| _version_ | 1866915876922458112 |
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| author | Rokni, Hossein Singleton, Patrick Zheng, Yuanlong Blake, Connor Lin, Haoran Yang, Shuolong |
| author_facet | Rokni, Hossein Singleton, Patrick Zheng, Yuanlong Blake, Connor Lin, Haoran Yang, Shuolong |
| contents | The inherent trade-off between ultra-low thermal conductivity and high mechanical rigidity in natural materials limits their utility in advanced applications. Inspired by the unique architecture of layered honeycomb structures, this study introduces a new class of metamaterials designed to overcome these constraints. By systematically exploring unit cell configurations and stacking arrangements, we demonstrate that a zigzag internal geometry, analogous to rhombohedral graphene stacking, optimizes thermal insulation while maintaining relatively high mechanical rigidity. Our finite element simulations predict that these layered structures can achieve a thermal conductivity of 12.5 mW/(m.K) using zirconia as the constructing material, theoretically outperforming state-of-the-art ceramic aerogels while maintaining robust mechanical stability. This novel approach paves the way for designing next-generation super-insulating materials with customizable mechanical properties, enabling innovative applications in extreme environments, lightweight aerospace structures, and advanced thermal management systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_18698 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Theoretical Insights into Layered Metamaterials with Enhanced Thermal and Mechanical Properties Rokni, Hossein Singleton, Patrick Zheng, Yuanlong Blake, Connor Lin, Haoran Yang, Shuolong Applied Physics The inherent trade-off between ultra-low thermal conductivity and high mechanical rigidity in natural materials limits their utility in advanced applications. Inspired by the unique architecture of layered honeycomb structures, this study introduces a new class of metamaterials designed to overcome these constraints. By systematically exploring unit cell configurations and stacking arrangements, we demonstrate that a zigzag internal geometry, analogous to rhombohedral graphene stacking, optimizes thermal insulation while maintaining relatively high mechanical rigidity. Our finite element simulations predict that these layered structures can achieve a thermal conductivity of 12.5 mW/(m.K) using zirconia as the constructing material, theoretically outperforming state-of-the-art ceramic aerogels while maintaining robust mechanical stability. This novel approach paves the way for designing next-generation super-insulating materials with customizable mechanical properties, enabling innovative applications in extreme environments, lightweight aerospace structures, and advanced thermal management systems. |
| title | Theoretical Insights into Layered Metamaterials with Enhanced Thermal and Mechanical Properties |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2411.18698 |