TY  - JOUR
AU  - Wang, Hujun
AU  - Zhao, Xiuyuan
AU  - Xie, Zhengcan
AU  - Yang, Biao
AU  - Zheng, Jing
AU  - Yin, Kai
AU  - Zhou, Zhongrong
PY  - 2024
TI  - Bioinspired directional structures for inhibiting wetting on super-melt-philic surfaces above 1200 ℃
JO  - International Journal of Extreme Manufacturing
SN  - 2631-8644
SP  - 045503
VL  - 6
IS  - 4
AB  - 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 1400 ℃, 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.
UR  - https://doi.org/10.1088/2631-7990/ad4074
DO  - 10.1088/2631-7990/ad4074