Superhydrophobic surface prepared by micromilling and grinding on aluminium alloy

Abstract

An efficient method for processing superhydrophobic surface is presented in this paper, which can realise the microstructure machining on a large area. First, the microgroove arrays were processed by high speed precision micromilling machine on the surface of the aluminium alloy. Then, the surface of the microgroove was ground by 1000 # electrostatic sand alumina water resistant abrasive belt. The machined surface topography was observed by SEM, which showed that the microgroove arrays were uniform. The contact angles of the water on the microgroove arrays were measured in different directions. In the parallel direction, the contact angle of microgroove arrays is 142¡0?5u, whereas in the vertical direction, it arrives 160¡0?6u. The above values of contact angle mean that a stable superhydrophobic metallic surface was prepared by the micromilling and grinding.

Fabrication of icephobic aluminium surfaces by atmospheric plasma jet polymerisation

“…Due to its good formability, conductivity of heat and electricity and a high strength to weight ratio, aluminium (Al) and its alloys are widely used in diverse fields, including electronic, medical, automotive and aerospace industries [1][2][3]. However, ice accumulation on aluminium surfaces results in serious problems where these surfaces are exposed to harsh environmental conditions over long periods [4,5].…”

Robust transferrable superhydrophobic surfaces

“…In recent years, extensive research has been published on rendering aluminium surfaces superhydrophobic [8][9][10][11][12][13][14][15][16][17][18][19][20][21]. These fabrication methods consist of two main steps: surface texturing and hydrophobic coating.…”

Is dropwise condensation feasible? A review on surface modifications for continuous dropwise condensation and a profitability analysis

“…Other top down approaches include micromilling and microgrinding [60] , [61] , abrasive blasting [62] , and femtosecond laser macromachining [63] , [64] . The latter is also known to produce hierarchical self-organized laser-induced periodic surface structures (LIPSS; [65] , [66] ) or cone like protrusions (CLP; [67] ), which are known to be hydrophobic.…”