Abstract
The objective of this study is to investigate the effects of the diameter of spherical indenter 2R on the ring crack initiation strength of ceramic thin film evaluated by cyclic sphere indentation test. Cyclic sphere indentation tests were carried out for 3 type ceramic thin films; TiAlN, “DLC by PVD” and “DLC by CVD”, by using Si3N4 balls of 4 types of diameter 2R, 5.96 mm, 7.93 mm, 9.53 mm and 12.6 mm. For all films, the ring crack initiation strength decreased with the increase of 2R. The decrease in “DLC by PVD” was smaller than the other films. The influence of the substrate on the ring crack initiation strength of TiAlN film was also investigated by using two type substrates, WC-Co and high-speed tool steel.The ring crack initiation strength obtained by small indenter changed with the substrate, however, the strength obtained by the indenter 2R = 12.6 mm, did not depend on the substrate material.
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 callMore From: The Proceedings of the Materials and Mechanics Conference
Disclaimer: 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.
