Fabrication Optimization of Ultra-Scalable Nanostructured Aluminum-Alloy Surfaces

doi:10.1021/acsami.1c08051

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	Fabrication Optimization of Ultra-Scalable Nanostructured Aluminum-Alloy Surfaces
	L. N. Li; Y. K. Lin; K. F. Rabbi; J. C. Ma; Z. Chen; A. Patel; W. Su; X. C. Ma; K. Boyina; S. Sett; D. Mondal; N. Tomohiro; F. Hirokazu and N. Miljkovic
	2021
发表期刊	Acs Applied Materials & Interfaces
ISSN	1944-8244
卷号	13 期号:36 页码:43489-43504
摘要	Aluminum and its alloys are widely used in various industries. Aluminum plays an important role in heat transfer applications, where enhancing the overall system performance through surface nanostructuring is achieved. Combining optimized nanostructures with a conformal hydrophobic coating leads to superhydrophobicity, which enables coalescence induced droplet jumping, enhanced condensation heat transfer, and delayed frosting. Hence, the development of a rapid, energy-efficient, and highly scalable fabrication method for rendering aluminum superhydrophobic is crucial. Here, we employ a simple, ultrascalable fabrication method to create boehmite nanostructures on aluminum. We systematically explore the influence of fabrication conditions such as water immersion time and immersion temperature, on the created nanostructure morphology and resultant nanostructure length scale. We achieved optimized structures and fabrication procedures for best droplet jumping performance as measured by total manufacturing energy utilization, fabrication time, and total cost. The wettability of the nanostructures was studied using the modified Cassie-Baxter model. To better differentiate performance of the fabricated superhydrophobic surfaces, we quantify the role of the nanostructure morphology to corresponding condensation and antifrosting performance through study of droplet jumping behavior and frost propagation dynamics. The effect of aluminum substrate composition (alloy) on wettability, condensation and antifrosting performance was investigated, providing important directions for proper substrate selection. Our findings indicate that the presence of trace alloying elements play a previously unobserved and important role on wettability, condensation, and frosting behavior via the inclusion of defect sites on the surface that are difficult to remove and act as pinning locations to increase liquid-solid adhesion. Our work provides optimization strategies for the fabrication of ultrascalable aluminum and aluminum alloy superhydrophobic surfaces for a variety of applications.
DOI	10.1021/acsami.1c08051
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收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65241
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L. N. Li,Y. K. Lin,K. F. Rabbi,et al. Fabrication Optimization of Ultra-Scalable Nanostructured Aluminum-Alloy Surfaces[J]. Acs Applied Materials & Interfaces,2021,13(36):43489-43504.
APA	L. N. Li.,Y. K. Lin.,K. F. Rabbi.,J. C. Ma.,Z. Chen.,...&F. Hirokazu and N. Miljkovic.(2021).Fabrication Optimization of Ultra-Scalable Nanostructured Aluminum-Alloy Surfaces.Acs Applied Materials & Interfaces,13(36),43489-43504.
MLA	L. N. Li,et al."Fabrication Optimization of Ultra-Scalable Nanostructured Aluminum-Alloy Surfaces".Acs Applied Materials & Interfaces 13.36(2021):43489-43504.

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