Get Functional Properties of Bio-Inspired Surfaces: PDF

By Eduardo A. Favret, Nestor Es Fuentes

This assessment quantity comprises a suite of articles, written via popular scientists from diversified international locations, on biomimetism and fabrics technological know-how. It begins with a close rationalization of the 4 regular, priceless houses of organic surfaces the shark pores and skin impression (anti-friction surfaces), the lotus impression (self-cleaning or anti-adhesive surfaces), the gecko impact (dry adhesive surfaces) and the moth eye impression (anti-reflective surfaces) and indicates their prolonged software in expertise. various microscopy innovations used for characterizing those technological beneficial organic surfaces equivalent to scanning electron microscopy, environmental scanning electron microscopy, confocal laser scanning microscopy and atomic strength microscopy, are mentioned within the following chapters. Then, a number of tools comparable to laser metallurgy, electrodeposition and plasma-based methods, that are used for editing the topography and composition of fabric surfaces to procure particular sensible houses with technological functions, are validated.

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31] Bush JWM, Hu DL, Prakash M, Casas J, Simpson SJ. (2007) The integument of waterwalking arthropods: Form and function. In The Integument of Water-Walking Arthropods: Form and Function, pp. 117–192. Academic Press. [32] Shirtcliffe NJ, McHale G, Newton MI, Perry CC, Pyatt FB. (2006) Plastron properties of a superhydrophobic surface. Appl Phys Lett 89: 104106. [33] Hu D, Prakash M, Chan B, Bush J. (2007) Water-walking devices. Expts Fluids 43: 769–778. [34] Han ZW, Xu XX, Qiu ZM, Ren LQ. (2005) Investigation of micro-wear and microfriction properties for bionic non-smooth concave components.

31] Bush JWM, Hu DL, Prakash M, Casas J, Simpson SJ. (2007) The integument of waterwalking arthropods: Form and function. In The Integument of Water-Walking Arthropods: Form and Function, pp. 117–192. Academic Press. [32] Shirtcliffe NJ, McHale G, Newton MI, Perry CC, Pyatt FB. (2006) Plastron properties of a superhydrophobic surface. Appl Phys Lett 89: 104106. [33] Hu D, Prakash M, Chan B, Bush J. (2007) Water-walking devices. Expts Fluids 43: 769–778. [34] Han ZW, Xu XX, Qiu ZM, Ren LQ. (2005) Investigation of micro-wear and microfriction properties for bionic non-smooth concave components.

To date, most of the work on shark skin models has been confined to force (shear) measurements when submerged in a fully turbulent boundary layer. However, if shark skin denticles are truly capable of bristling, what is the flow induced by such a geometry? To answer this question, a series of experiments, using a water tunnel facility and the Digital Particle Image Velcocimetry (DPIV) measurement technique, were conducted. A bristled shortfin The Shark Skin Effect 31 Fig. 8. Above: plastic scale and suspension mechanism; below: shear stress data obtained over the shark skin model.

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