TY - JOUR
T1 - A highly controlled fabrication of porous anodic aluminium oxide surface with versatile features by spatial thermo-anodization
AU - Zhang, Zhehui
AU - Sridhar, Sreepathy
AU - Wei, Guoying
AU - Yu, Yundan
AU - Zhang, Zhongquan
AU - Jiang, Li
AU - Yang, Yumeng
AU - Shahzad, Muhammad Wakil
AU - Chen, Xue
AU - Xu, Ben Bin
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-23
PY - 2021/2/25
Y1 - 2021/2/25
N2 - Thermo-anodization technology has been considered as an effective means to improve the thermal, physical and chemical properties for metal alloy. In this work, we achieve a porous black layer on the surface of aluminium alloy through an environmentally friendly anodic oxidation process, with a high thermal emittance (0.96) and a high solar absorptivity (0.921). In addition, the black thermo-anodized coating layer shows a unique anti-corrosion property under UV irradiation. A hybrid hydrophobic surface has been facilitated through treating the thermo-anodized porous layer with silane. Moreover, an anti-icing feature can be realised that can effectively delay the freezing of water droplet on the surface of AA2024 aluminium alloy. As such, the specific anodic process of coating provides a simple method for improving the solar absorptivity and infrared emittance of aluminium alloys, enabling broad applications in aerospace engineering.
AB - Thermo-anodization technology has been considered as an effective means to improve the thermal, physical and chemical properties for metal alloy. In this work, we achieve a porous black layer on the surface of aluminium alloy through an environmentally friendly anodic oxidation process, with a high thermal emittance (0.96) and a high solar absorptivity (0.921). In addition, the black thermo-anodized coating layer shows a unique anti-corrosion property under UV irradiation. A hybrid hydrophobic surface has been facilitated through treating the thermo-anodized porous layer with silane. Moreover, an anti-icing feature can be realised that can effectively delay the freezing of water droplet on the surface of AA2024 aluminium alloy. As such, the specific anodic process of coating provides a simple method for improving the solar absorptivity and infrared emittance of aluminium alloys, enabling broad applications in aerospace engineering.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0257897220314791
UR - http://www.scopus.com/inward/record.url?scp=85098967799&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2020.126809
DO - 10.1016/j.surfcoat.2020.126809
M3 - Article
SN - 0257-8972
VL - 408
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
ER -