摘要
为制备毛细力特性优异的多孔吸液芯,为大功率热管的设计和制造提供支持,采用氧化还原法制备了具有纳米多孔结构的不锈钢席型网,并对其毛细力特性进行研究。利用扫描电子显微镜观察不锈钢丝网表面的微观形貌,采用高速摄像与红外摄像相结合的可视化实验方法拍摄不锈钢丝网表面的液滴扩展与毛细上升过程,并基于毛细上升理论得到了不同不锈钢丝网的毛细性能因子。研究结果表明,当样品制备温度控制在96℃时,在不锈钢丝网表面形成了较为均匀的超亲水纳米多孔结构,纳米多孔结构显著增强了不锈钢席型网的毛细力,所制备样品的毛细性能因子最大可达4 mm。
In order to fabricate the heat pipe wick structures with high capillary performance,and to support the design and manufacture the heat pipe with high power level,the oxidation and reduction method is adopted to fabricate the nano-structured stainless steel Dutch wire meshes,and their capillary characteristics are investigated in this study.The morphology of wire mesh is observed by SEM,and HSV and IR camera are adopted to record the droplet spreading and capillary rising processes respectively.The capillary performance coefficient is achieved based on capillary rising theory.Investigations show that the superhydrophilic nano-structures can be achieved when fabricated temperature is around 96℃.Nano-structures improve the capillary performance significantly,and the capillary performance factor can reach 4 mm.
作者
郭凯伦
王成龙
张大林
秋穗正
苏光辉
田文喜
Guo Kailun;Wang Chenglong;Zhang Dalin;Qiu Suizheng;Su Guanghui;Tian Wenxi(School of Nuclear Science and Technology,Xi’an Jiaotong University,Xi’an,710049,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2021年第S01期58-62,共5页
Nuclear Power Engineering
基金
科技部重点研发计划(2019YFB1901100)
中国核动力院重点实验室基金。
关键词
纳米表面结构
席型网
吸液芯
毛细性能
Nano-structure
Dutch wire mesh
Wick
Capillary characteristics