dc.identifier.uri |
http://dx.doi.org/10.15488/610 |
|
dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/634 |
|
dc.contributor.author |
Smedskjaer, Marten M.
|
|
dc.contributor.author |
Youngman, Randalf E.
|
|
dc.contributor.author |
Striepe, Simon
|
|
dc.contributor.author |
Potuzak, Marcel
|
|
dc.contributor.author |
Bauer, Ute
|
|
dc.contributor.author |
Deubener, Joachim
|
|
dc.contributor.author |
Behrens, Harald
|
|
dc.contributor.author |
Mauro, John C.
|
|
dc.contributor.author |
Yue, Yuanzheng
|
|
dc.date.accessioned |
2016-11-02T08:33:44Z |
|
dc.date.available |
2016-11-02T08:33:44Z |
|
dc.date.issued |
2014 |
|
dc.identifier.citation |
Smedskjaer, M.M.; Youngman, R.E.; Striepe, S.; Potuzak, M.; Bauer, Ute et al.: Irreversibility of pressure induced boron speciation change in glass. In: Scientific Reports 4 (2014), 3770. DOI: http://dx.doi.org/10.1038/srep03770 |
|
dc.description.abstract |
It is known that the coordination number (CN) of atoms or ions in many materials increases through application of sufficiently high pressure. This also applies to glassy materials. In boron-containing glasses, trigonal BO 3 units can be transformed into tetrahedral BO 4 under pressure. However, one of the key questions is whether the pressure-quenched CN change in glass is reversible upon annealing below the ambient glass transition temperature (T g). Here we address this issue by performing 11 B NMR measurements on a soda lime borate glass that has been pressure-quenched at ∼0.6 GPa near T g. The results show a remarkable phenomenon, i.e., upon annealing at 0.9T g the pressure-induced change in CN remains unchanged, while the pressurised values of macroscopic properties such as density, refractive index, and hardness are relaxing. This suggests that the pressure-induced changes in macroscopic properties of soda lime borate glasses compressed up to ∼0.6 GPa are not attributed to changes in the short-range order in the glass, but rather to changes in overall atomic packing density and medium-range structures. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
London : Nature Publishing Group |
|
dc.relation.ispartofseries |
Scientific Reports 4 (2014) |
|
dc.rights |
CC BY 3.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by/3.0/ |
|
dc.subject |
Solid state NMR |
eng |
dc.subject |
materials science |
eng |
dc.subject |
glass |
eng |
dc.subject.ddc |
600 | Technik
|
ger |
dc.title |
Irreversibility of pressure induced boron speciation change in glass |
|
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.issn |
2045-2322 |
|
dc.relation.doi |
http://dx.doi.org/10.1038/srep03770 |
|
dc.bibliographicCitation.volume |
4 |
|
dc.bibliographicCitation.firstPage |
3770 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|