5 papers
On the Relation Between the Boson Peak and the Vibrational Phases in Glasses
Philip Rasmussen, Søren S. Sørensen
The boson peak is a vibrational feature commonly found in glassy and disordered systems described as the deviation from the scaling of the Debye model (). Des…
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…
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…
Identifying cobordisms using kernel persistence
Yossi Bokor Bleile, Lisbeth Fajstrup, Teresa Heiss +2
Motivated by applications in chemistry, we give a homlogical definition of tunnels, or more generally cobordisms, connecting disjoint parts of a cell complex. For a filtered comple…
Thermal conductivity in modified oxide glasses is governed by modal phase changes
Philip Rasmussen, Søren Strandskov Sørensen
The thermal conductivity of glasses is well-known to be significantly harder to theoretically describe compared to crystalline materials. Because of this fact, the fundamental unde…