Abstract
Nickel (Ni) films with positive and negative textured surfaces of lotus and rice leaf patterns were fabricated through an inexpensive and effective method. The as-prepared Ni films were superhydrophobic and exhibited excellent tribological properties after chemical treatment. Experimental results indicated that the water contact angles (WCAs) on the surfaces of biomimetic textured Ni films (approximately 120°) were far greater than those on smooth films (65°). The biomimetic textured surfaces became superhydrophobic (WCA of approximately 150°) after perfluoropolyether (PFPE) treatment, which could be due to the combined effects of the special texture and the PFPE. The as-prepared biomimetic-textured Ni films modified with PFPE were improved with a low friction coefficient and excellent antiwear properties, which were due to the combination of the effective lubrication of PFPE and the special textures that served as a good lubricant and a debris reservoir. Moreover, the antiwear properties of the as-prepared Ni films with negative biomimetic microtextures modified with PFPE were much better than those of films with positive biomimetic microtextures modified with PFPE.
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Ying WANG. She received her PhD degree in Material Science from Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China, in 2010. Since then, she have been working in Changzhou University. Her current research interest is bio-mimicking, multi-scaled micro/nano ultrathin films and micro/nano tribology.
Jianning DING. He received his PhD degree in Mechanical Engineering from Tsinghua University, China, in 2001. He joined Jiangsu University between 1991 and 2007. He is a research fellow in City University of Hong Kong from 2002 to 2003. His current position is a professor and vice president of Changzhou University. He is the director of center for low- dimensional materials, micro-nano devices and system; director of Jiangsu Collaborative innovation center of “Photovoltaic science and engineering” in 2011; director of Jiangsu Key Laboratory for Solar Cell Materials and Technology; the head of Science and Technology Innovation Team in Jiangsu Universities; the chief scientist in the first level of young and middle-aged in “333 project” of Jiangsu province. His research areas cover the device technology and equipment research of new energy materials, low- dimensional materials, micro-nano devices and system, and Tribology. Above 300 academic papers and 4 books were published.
Ningyi YUAN. She received her bachelor degree in Physics in 1988 from Nanjing University, Nanjing, China and PhD degree in Microelectronics and Solid-State Electronics in 2003 from Shanghai Institute of Microsystem and Information technology, Chinese Academy of Sciences, respectively. She joined Changzhou University from 1988. Her current position is a professor and the deputy director of Jiangsu Collaborative innovation center of “Photovoltaic science and engineering”, the deputy director of Jiangsu Key Laboratory for Solar Cell Materials and Technology. Her research areas cover the low-dimensional materials and micro-nano devices and system.
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Wang, Y., Yang, J., Guo, X. et al. Fabrication and tribological properties of superhydrophobic nickel films with positive and negative biomimetic microtextures. Friction 2, 287–294 (2014). https://doi.org/10.1007/s40544-014-0060-4
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DOI: https://doi.org/10.1007/s40544-014-0060-4