Abstract
Hardness is an important property of glasses, which depends strongly on the method of measurement. Herein, we estimate the hardness of three oxide glasses, namely, pure silica (0B), borosilicate (37B), and sodium borate (75B) glass samples at micro and nanoscale. We observe that annealing of these glass samples, after polishing, has little effect on their hardness and modulus. Interestingly, we observe that the nanoindentation is unable to capture the full extent of elastic recovery, thereby underestimating the hardness of these glasses. We show that the post-indentation elastic recovery is highly dependent on the chemical composition of glass. Combining nanoindentation and atomic force microscopy (AFM) imaging, we accurately capture the complete elastic recovery of glass samples, thereby calculating the true hardness values from indentation depth profiles. Overall, we show that post-indentation elastic recovery plays a crucial role in determining the hardness of glasses.
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.
