垂直石墨烯和相变材料的板状复合材料,用于高效的散热
Xiaoqian Teng1, Chuanren Ye1, Shantao Zhang1
1Department of Materials Science and Engineering, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China.
ACS nano
|January 8, 2026
概括
一种基于石墨烯的新型复合材料提供了出色的导热性和符合先进的热接口材料 (TIM) 的要求. 这种材料表现出卓越的散热能力,解决了高功率电子设备冷却方面的关键挑战.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 热力工程是热力工程中的一个.
背景情况:
- 高性能热接口材料 (TIM) 面临着热导率和机械合规性之间的权衡.
- 开发先进的TIM对于高功率电子设备的热量管理至关重要.
研究的目的:
- 开发一种基于石墨烯的板状复合材料TIM,具有高导热率和优越的合规性.
- 研究石墨烯和石墨烯的协同效应,以提高热管理.
主要方法:
- 使用垂直石墨烯薄膜和经过修改的石墨烯通过逐层滚动组件制造复合材料.
- 复合材料的导热性,接触热电阻和在高热流下性能的表征.
- 对石墨烯封闭和流动在石墨烯矩阵中的评估.
主要成果:
- 该复合材料在55°C时实现了789 W m-1 K-1的超高导热率.
- 证明了低接触热电阻 (17K mm2 W-1 在60 psi) 没有抛泄漏.
- 与商业TIM相比,在30W cm-2的热量流下显示温度上升明显较低.
结论:
- 开发的板状复合材料有效地克服了TIMs中的导热性-合规性权衡.
- 石墨烯和石墨烯之间的协同效应使得优越的散热.
- 可扩展的制造协议为高功率应用中的高级TIM提供了一个有前途的途径.
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