为了提高航天器中电子器件的冷却效率,本文利用干式腐蚀方法形成方柱微结构,通过控制加热电流方法,在北京落塔进行了持续3.6 s有效微重力时间的过冷FC-72池沸腾强化换热实验研究。研究结果表明:相比光滑表面,方柱微结构表面利用其独立于重力水平的毛细作用力,显著地强化了微重力沸腾换热。 In order to improve the cooling efficiency of electronic devices in spacecraft, a dry-etching method was used to form a square column microstructure. By controlling the heating current method, a supercooled FC-72 pool boiling at 3.6 s effective microgravity time Experimental study of enhanced heat transfer. The results show that, compared to a smooth surface, the microcolumnar surface of the square column significantly enhances microgravity boiling heat transfer by utilizing its capillary force independent of gravity.