Density-driven structural transformations in boro-germanate glass

DOI

The resistance of glass to fracture is crucial for its use as a structural material in fields ranging from engineering to architecture. Here, B2O3 can play a crucial role in improving crack resistance because of the ability of B atoms to transform from 3-fold to 4-fold coordination with increasing load. However, there is little in situ information on these stress induced structural transformations, where pressures in the GPa regime are readily generated on scratching or indentation. We will use in situ high-pressure neutron diffraction to investigate the structural changes in an archetypal boro-germanate glass, a structural analogue for commercially relevant boro-silicate glass, in which structural change occurs at accessible pressures. The results will be used to build models that relate the glass structure and its deformation to the material properties.

Identifier
DOI https://doi.org/10.5286/ISIS.E.101135241
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/101135241
Provenance
Creator Miss Rita Silva; Dr Anita Zeidler; Mr Lawrence Gammond; Professor Phil Salmon; Dr Craig Bull
Publisher ISIS Neutron and Muon Source
Publication Year 2022
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2019-02-19T10:00:00Z
Temporal Coverage End 2019-02-28T19:06:49Z