Journal
CIRP ANNALS-MANUFACTURING TECHNOLOGY
Volume 64, Issue 1, Pages 519-522Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cirp.2015.03.004
Keywords
Friction; Wear; Micro-structure
Funding
- National Research Foundation of Korea (NRF) - Korea Government (MSIP) [2010-0018289]
- National Research Foundation of Korea [2010-0018289] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A novel micro-structured PDMS coating with high durability and relatively low friction was successfully replicated from a lotus leaf. Unlike the bio-inspired coatings developed previously, the micro-structured PDMS specimen could be fabricated in the form of a coating which could be successfully deposited on a solid surface. Results showed that friction and wear of the micro-structured PDMS specimens were significantly lower than those of the smooth specimens. It was also found that the wear resistance of micro-structured PDMS coating with 200 mu m thickness was much higher than that of the micro-structured PDMS bulk specimen. The drastically high durability of the PDMS coating specimen was attributed to frictional energy dissipation through elastic deformation of the micro-structures. (c) 2015 CIRP.
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