Abstract
We report an intriguing anisotropic deformation behavior of lithium disilicate crystal under tensile loadings via molecular dynamics simulations. The crystal undergoes clear brittle cleavage in the [010] direction, while exhibiting a first-order transition with the critical stress of around 8 GPa in the [100] direction. The transition is exclusively facilitated by local Li-O bond breakage spreading to the whole sample. This hierarchical deformation mechanism enables overall structure integrity while undergoing large degrees of deformation. To the best of our knowledge, this is the first observation on this intriguing deformation behavior that might inspire new designs of tougher lithium disilicate glass-ceramics.
Sign-in/Register to access full text options 
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.
