3D printing of alumina ceramic heat sink with mini-channels for thermal management
3D printing of alumina ceramic heat sink with mini-channels for thermal management
复制标题
3D 打印带有微通道的氧化铝陶瓷散热器，用于热管理
DOI：
10.1111/ijac.14321
复制
发表时间：
2022
影响因子：
2.1
通讯作者：
Shiwei Wang
中科院分区：
文献类型：
--
作者：
Mengting Dang;Song Hu;Guohong Zhou;Xuezheng Yue;Shiwei Wang
热管理已经成为高功率、集成和小型化电子器件最具挑战性的问题之一。本文采用数字光处理3D打印技术制作了一种带有微型通道的氧化铝陶瓷散热器。利用扫描电镜对陶瓷的微观结构进行了研究。通过红外热成像和微热电偶表征，确定了微通道中水的有效冷却速率。陶瓷散热器进一步集成了高功率激光二极管模块；通过研究陶瓷散热器的热阻和激光二极管模块的光电性能来评估其冷却性能。结果表明，该激光二极管模块可以在115.6 W的高驱动功率下工作。该研究为电子器件的高效热管理提供了一种新的策略，并突出了具有更紧凑冷却通道的陶瓷散热器的技术潜力。
Thermal management has become one of the most challenging issues for high‐power, integrated, and miniaturized electronic devices. In this paper, an alumina ceramic heat sink with mini‐channels was fabricated using a digital light processing 3D printing technology. Microstructures of the ceramic were investigated by scanning electron microscopy. A proper flow rate of water in the mini‐channels was figured out for efficient cooling by infrared thermal imaging and micro‐thermocouple characterizations. The ceramic heat sink was further integrated with a high‐power laser diode module; cooling performance was evaluated by investigating the thermal resistance of the ceramic heat sink and the optoelectronic property of the laser diode module. Results indicated that the laser diode module could be operated at high driving power of 115.6 W. This study provided a new strategy for a highly efficient thermal management of electronic devices and highlighted the technical potential of ceramic heat sink with more compact coolant channels.