PDF Publication Title:
Text from PDF Page: 044
smoothening of the wear track surfaces is clearly observable. Also, note that the mean plane of the smoothened wear track surface (from 4 to 10 mm scan length) is sometimes located slightly higher than the lowest point of the valleys in the original coating surfaces (both edges of wear profiles from 0 to 2 or from 12 to 14 mm scan length). This is attributed to the fact that the very fine PTFE-based wear debris (observed after testing) was filling the valleys and pits of the initial rough coating surfaces, and thus, solid polymer lubricant can stay continuously trapped inside the wear track, thus effectively lubricating the dry interface preventing catastrophic failure. None of these behaviors were observed in the other coatings, which alludes to the fact that this is a critical mechanism of polymeric coatings in determining their tribological performance. This “filling effect” of wear debris is also seen in the optical pictures in Figure 3.9, showing the wear tracks after unidirectional testing. The wear tracks of PTFE/Pyrrolidone-2 and PTFE/MoS2 coatings are very glossy after sliding because the surface got smoothened due to the filling effect of the wear debris. On the contrary PEEK based coatings generated flake-like debris, and resulted in continuous coating material removal and thus higher wear rates. In the case of the scuffed coatings (Fluorocarbon and Resin/PTFE/MoS2), complete penetration of the coatings was observed, thus exposing the cast iron substrate surface as seen in Figure 3.9(d). Because the counterpart (shoe) surface is extremely smooth (0.035 μm), the filling effect is not observable on the shoe surface, and in this case, usually very thin transfer film is supposed to be formed on it (Escobar Nunez et al., 2011). 38PDF Image | TRIBOLOGY OF POLYMERIC COATINGS FOR AGGRESSIVE BEARING APPLICATIONS
PDF Search Title:
TRIBOLOGY OF POLYMERIC COATINGS FOR AGGRESSIVE BEARING APPLICATIONSOriginal File Name Searched:
thesis-tribology.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)