Year-end Sale % OFF 
Abstract
The growth of cone cracks in soda-lime glass during static loading with a spherical indenter shows that crack growth is accelerated by perfluorinated acids, probably by a stress corrosion mechanism involving reaction between the acids and strained Si-O bonds in the crack-tip region. The strained bonds are not reactive toward perfluoropolyalkyl ether (PFPE) oils under static conditions. In hybrid silicon nitride-steel contacts, acidic products of the degradation of PFPE oils by Lewis acid sites on the steel surfaces may be transported through the crack to the crack-wake region and attack the strained Si-O bonds. These results suggest that PFPE oils may not be the best choice for lubrication of silicon nitride-steel hybrid bearing systems.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
