Three working-liquid charging methods for miniature heat pipes are introduced, and their advantages and disadvantages are described. Using these methods, two types of ceramic heat pipes were charged and tested. The ceramic heat pipes were made of alumina and have overall dimensions of 89 mm x 12 mm x 2.9 mm and a designed vapor space of 82.5 mm x 4.1 mm x 1.27 mm. Axial micro capillary grooves were provided on the top and bottom or sidewalls inside the heat pipes as wick structures. Water was used as working liquid. More than 20 Watts of heat input was achieved on a 5 mm x 5 mm heating surface. The corresponding heat flux was 80 W/cm~2.
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机译：介绍了微型热管的三种工作液填充方法，并介绍了它们的优缺点。使用这些方法，对两种类型的陶瓷热管进行了充电和测试。陶瓷热管由氧化铝制成，总尺寸为89毫米x 12毫米x 2.9毫米，设计蒸气空间为82.5毫米x 4.1毫米x 1.27毫米。轴向微毛细管槽作为芯结构设置在热管内部的顶部和底部或侧壁上。水被用作工作液体。在5 mm x 5 mm的加热表面上获得了超过20瓦的热量输入。相应的热通量为80 W / cm〜2。
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