Micromechanical properties of polymeric coatings Academic Article

abstract

• In earlier studies, PTFE-based coatings showed superb tribological performance under aggressive conditions, relevant to air-conditioning and refrigeration compressors. In this work, micromechanical properties of different polymeric coatings (PTFE-, PEEK-, resin- and fluorocarbon-based coatings) coated on gray cast iron, were examined using instrumented microindentation. The load-unload responses were used to measure the load-bearing properties of the coatings, as well as to extract their elastic modulus and hardness values. Induced structural differences between the PTFE- and PEEK-based coatings were confirmed using scanning electron microscopy. These measurements were used to explain the difference in the tribological performance between PTFE- and PEEK-based coatings. Such correlation is useful as simpler indentation experiments could be readily performed, compared to more complex and application-specific tribological experiments. © 2012 Elsevier Ltd.

authors

• Polycarpou, Andreas

author list (cited authors)

• Yeo, S. M., & Polycarpou, A. A.

citation count

• 23

publication date

• April 2013

publisher

• Elsevier BV  Publisher

published in

• Tribology International  Journal

keywords

• Indentation
• Microstructure
• Polymeric Coating
• Ptfe

Digital Object Identifier (DOI)

• 10.1016/j.triboint.2012.11.009

start page

• 198

end page

• 208

volume

• 60