用于热力学保护的三重周期性最小表面
Samantha Cheung1, Jiyun Kang1, Yujui Lin1
1Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA.
Scientific reports
|January 11, 2025
概括
铜3D打印的三重周期性最小表面 (TPMS) 格子为电池的热管理提供可调节的热和机械性能. 这些复合TPMS结构显示出高效散热的承诺,同时保持机械完整性.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 热管理 热管理
背景情况:
- 三重周期性最小表面 (TPMS) 超材料对热管理具有前景,但由于严格的机械要求,它们面临着整合挑战.
- 复合TPMS网格通过材料和几何修饰来加强对热和机械性能的控制.
研究的目的:
- 制造和评估用于电池热管理系统的3D打印TPMS原始网格.
- 调查格子几何和铜厚对压力下降,机械性能和导热性的影响.
主要方法:
- 制造铜,3D打印的TPMS原始格子.
- 试验测量压力下降,机械性能 (弹性模量,压力强度) 和导热.
- 将网格集成到多通道冷板中,用于性能评估.
主要成果:
- 网格在1LPM流速下呈现压力下降至6.5kPa以下,随着通道宽度的增加而下降.
- 一个0.43%的铜体积负载超过三倍的导热率,同时保持聚合物类似的合规性.
- 格子相对密度的增加增加了弹性模量和压力强度,但没有影响热导率.
结论:
- TPMS网格设计允许分离控制压力下降,机械响应和导热性的参数.
- 这种脱使得复杂的多物理系统能够获得广泛的特性,特别是在热管理应用中.
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