title: Bio-inspired low frictional surfaces having micro-dimple arrays prepared with honeycomb patterned porous films as wet etching masks.
abstract: Some kinds of snakes have micro-dimple arrays on their skins and show low frictional properties. Cost-effective and simple preparation methods of surfaces having micro-dimple arrays without burrs have been required. In this study, micro-dimple arrays were successfully prepared on aluminum plates and pipes by using honeycomb patterned porous films as wet etching masks. Resulting surfaces having 5 and 8 μm dimple diameters show low frictional coefficients compared with polished surfaces at a fluid lubrication regime.
authors.affiliation: Graduate School of Engineering and ‡Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University , 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Saito
authors.forename: H
authors.initials: H
authors.lastname: Yabu
mesh_terms: D000178:Acrylamides / Q000737:chemistry*; D000535:Aluminum / Q000737:chemistry*; D000818:Animals; D001696:Biomechanical Phenomena; D040761:Biomimetic Materials / Q000737:chemistry*; D017276:Friction; D008153:Lubrication; D009068:Movement / Q000502:physiology; D058105:Polymerization; D016062:Porosity; D012867:Skin / Q000033:anatomy & histology; D012911:Snakes / Q000033:anatomy & histology / Q000502:physiology; D013499:Surface Properties
chemical_list: D000178:Acrylamides; D000535:Aluminum