Bioinspired directional structures for inhibiting wetting on super-melt-philic surfaces above 1200°C

作     者：Hujun Wang Xiuyuan Zhao Zhengcan Xie Biao Yang Jing Zheng Kai Yin Zhongrong Zhou Hujun Wang;Xiuyuan Zhao;Zhengcan Xie;Biao Yang;Jing Zheng;Kai Yin;Zhongrong Zhou

作者机构：Tribology Research InstituteState Key Laboratory of Rail Transit Vehicle SystemSchool of Mechanical EngineeringSouthwest Jiaotong UniversityChengdu 610031People's Republic of China Hunan Key Laboratory of Nanophotonics and DevicesSchool of PhysicsCentral South UniversityChangsha 410083People's Republic of China 

出 版 物：《International Journal of Extreme Manufacturing》 (极端制造（英文）)

年 卷 期：2024年第6卷第4期

页      面：337-346页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was supported by National Natural Science Foundation of China(No.52105212) Sichuan Science and Technology Program(No.2023NSFSC0863) China Postdoctoral Science Foundation(No.2021M702712) 

主　　题：directional structures bioinspired design inhibiting wetting super-melt-philic superhydrophobic 

摘      要：Over the past two decades,superhydrophobic surfaces that are easily created have aroused considerable attention for their superior performances in various applications at room ***,there is a growing demand in special fields for the development of surfaces that can resist wetting by high-temperature molten droplets(1200°C)using facile design and fabrication ***,bioinspired directional structures(BDSs)were prepared on Y2O3-stabilized ZrO2(YSZ)surfaces using femtosecond laser *** 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°C,compared with polished super-CMAS-melt-philic YSZ ***,the BDSs demonstrated exceptional wetting inhibition even at 1400°C,with an increase from 3.3°to 31.3°in contact angle and a 67.9%decrease in spreading *** 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.