首页|Bioinspired directional structures for inhibiting wetting on super-melt-philic surfaces above 1200 ℃
Bioinspired directional structures for inhibiting wetting on super-melt-philic surfaces above 1200 ℃
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
Over the past two decades,superhydrophobic surfaces that are easily created have aroused considerable attention for their superior performances in various applications at room temperature.Nowadays,there is a growing demand in special fields for the development of surfaces that can resist wetting by high-temperature molten droplets(＞1200 ℃)using facile design and fabrication strategies.Herein,bioinspired directional structures(BDSs)were prepared on Y2O3-stabilized ZrO2(YSZ)surfaces using femtosecond laser ablation.Benefiting from the anisotropic energy barriers,the BDSs featured with no additional modifiers showed a remarkable increase from 9.2° to 60° in the contact angle of CaO-MgO-Al2O3-SiO2(CMAS)melt and a 70.1％reduction in the spreading area of CMAS at 1250 ℃,compared with polished super-CMAS-melt-philic YSZ surfaces.Moreover,the BDSs demonstrated exceptional wetting inhibition even at 1 400 ℃,with an increase from 3.3° to 31.3° in contact angle and a 67.9％decrease in spreading area.This work provides valuable insight and a facile preparation strategy for effectively inhibiting the wetting of molten droplets on super-melt-philic surfaces at extremely high temperatures.
Tribology Research Institute,State Key Laboratory of Rail Transit Vehicle System,School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,People's Republic of China
Hunan Key Laboratory of Nanophotonics and Devices,School of Physics,Central South University,Changsha 410083,People's Republic of China
National Natural Science Foundation of ChinaSichuan Science and Technology ProgramChina Postdoctoral Science Foundation
NETL
NSTL
万方数据
