4 papers
Uncovering the deformation mechanism of glasses during indentation through high-resolution X-ray scattering
M. Faizal Ussama Jalaludeen, Søren S. Sørensen, Johan F. S. Christensen +7
Indentation experiments can be used to mimic real-life damage events of glasses that lead to surface flaws and thus lower practical strength. Conventional indentation studies often…
Connecting bond switching to fracture toughness of calcium aluminosilicate glasses
Sidsel Mulvad Johansen, Tao Du, Johan F. S. Christensen +5
Fracture toughness is a critical mechanical property of glasses, but a detailed understanding of its link to composition and structure is still missing. Here, focusing on the indus…
In situ mapping of indentation-induced densification and cracking in vitreous silica by nanofocus X-ray scattering
Johan F. S. Christensen, M. Faizal Ussama Jalaludeen, Søren S. Sørensen +9
The practical strength of oxide glasses is greatly reduced by surface flaws that form during processing and use. Instrumented indentation can mimic such real-life damage events and…
Transferable potential for molecular dynamics simulations of borosilicate glasses and structural comparison of machine learning optimized parameters
Kai Yang, Ruoxia Chen, Anders K. R. Christensen +4
The simulation of borosilicate glasses is challenging due to the composition and temperature dependent coordination state of boron atoms. Here, we present a newly developed machine…