在金属/碳纳米管接口的热传导的多尺度研究:结合两个温度模型和不平衡分子动力学
Huijin Li1,2, Zi-Lan Liu3, Shuai Liu1,2
1Information Science Academy of China Electronics Technology Group Cooperation, Beijing 100144, People's Republic of China.
Journal of physics. Condensed matter : an Institute of Physics journal
|December 16, 2025
概括
这项研究使用先进的模拟来量化碳纳米管 (CNT) /金属接口之间的热传递. 研究结果揭示了接口结构如何影响热导率,这对于电子设备冷却至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 计算物理 计算物理
背景情况:
- 高效的散热对于微型和纳米电子设备至关重要.
- 了解金属/非金属接口的热传输对于设备性能至关重要.
研究的目的:
- 研究水平对齐的碳纳米管 (CNT) /金属接口的接口热导率.
- 确定界面粘合和结构对热传输的影响.
主要方法:
- 结合不平衡分子动力学 (NEMD) 与两温度框架.
- 获得了原子尺度的声子热量流和温度概况.
- 将结果纳入稳定状态热传导模型.
主要成果:
- 使用Cu/Si接口验证的方法.
- 为Cu/CNT和Ti/CNT接口计算的接口热导电量.
- 与实验数据有很好的一致性.
结论:
- 接口粘合和结构显著影响跨CNT/金属接口的热传输.
- 模拟方法提供了准确的界面热阻值.
- 结果为设计电子设备中高效的热管理解决方案提供了洞察力.
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