纳米多孔超亲水不锈钢席型网毛细力特性研究

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.