Yang Qimeng, Dolatabadi Ali, Golovin Kevin
Mechanical & Industrial Engineering, University of Toronto, 5 King's College Rd, Toronto, ON M5S 3G8, Canada.
Mater Horiz. 2023 Oct 2;10(10):4541-4550. doi: 10.1039/d3mh00885a.
The strong adhesion of ice to surfaces results in unwanted effects in various industrial activities. However, current strategies for passive ice-phobic purposes lack either scalability or durability, or both, in industrial applications. In this study, erosion-resistant materials, including ceramic-based (WC, SiC, and alumina) and metal-based (a quasicrystalline coating, QC), were studied for their ice-phobic properties push-off tests with bulk-water ice from -5 to -20 °C. Although their ice adhesion strengths were high (>400 kPa), their interfacial toughness with ice was quite low (1.1 to 2.6 J m) and comparable to polymeric surfaces. The force per width required to remove ice on the QC surface was even lower than that of a silicone (Sylgard 184) surface for an ice length of 7.0 cm. The low interfacial toughness of the erosion-resistant materials with ice was also retained after 1000 cycles of linear abrasion under a pressure of 27.0 kPa. The findings of this work expand the material selection options for durable large-scale ice-phobic applications and could enlighten the use of erosion-resistant materials in harsh industrial environments requiring effective de-icing.
冰与表面的强附着力在各种工业活动中会产生不良影响。然而,目前用于被动防冰目的的策略在工业应用中要么缺乏可扩展性,要么缺乏耐久性,或者两者都缺乏。在本研究中,研究了包括陶瓷基(WC、SiC和氧化铝)和金属基(准晶涂层,QC)在内的抗侵蚀材料的疏冰性能,在-5至-20°C的条件下对块状水冰进行了推离试验。尽管它们的冰附着力强度很高(>400 kPa),但它们与冰的界面韧性相当低(1.1至2.6 J/m²),与聚合物表面相当。对于7.0 cm长的冰,在QC表面去除冰所需的单位宽度力甚至低于硅胶(Sylgard 184)表面。在27.0 kPa的压力下进行1000次线性磨损循环后,抗侵蚀材料与冰的低界面韧性也得以保留。这项工作的结果扩展了用于持久大规模疏冰应用的材料选择范围,并可能启发在需要有效除冰的恶劣工业环境中使用抗侵蚀材料。