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https://doi.org/10.1016/0022-3697(95)00220-0
DC Field | Value | |
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dc.title | Atomic structural evolution of pressure-induced amorphization processes in β-cristobalite | |
dc.contributor.author | Zhang, X. | |
dc.contributor.author | Lam, C.O. | |
dc.contributor.author | Ong, C.K. | |
dc.date.accessioned | 2014-10-16T09:16:21Z | |
dc.date.available | 2014-10-16T09:16:21Z | |
dc.date.issued | 1996-02 | |
dc.identifier.citation | Zhang, X., Lam, C.O., Ong, C.K. (1996-02). Atomic structural evolution of pressure-induced amorphization processes in β-cristobalite. Journal of Physics and Chemistry of Solids 57 (2) : 237-242. ScholarBank@NUS Repository. https://doi.org/10.1016/0022-3697(95)00220-0 | |
dc.identifier.issn | 00223697 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/95833 | |
dc.description.abstract | The changes in the atomic structure of β-cristobalite before and after the onset of the amorphization are examined in detail by analysing the Molecular Dynamics trajectories of Si and O ions. It is found that long Si-O bonds with bond lengths of 1.9-2.5 Å emerge after the onset of amorphization. Most of oxygen ions bonded to Si with long Si-O bonds come from neighbouring SiO4 tetrahedrals. The breakage of Si-O bonds is found to occur frequently during the amorphization process, with the majority of the broken bonds being long Si-O bonds. Our results show that bond breaking and relatively large atomic displacements play important roles in the pressure-induced amorphization of β-cristobalite and that the structural changes in the material during amorphization involve both short and inter-medium range orders. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/0022-3697(95)00220-0 | |
dc.source | Scopus | |
dc.subject | A. amorphous materials | |
dc.subject | C. high pressure | |
dc.subject | D. phase transitions | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.description.doi | 10.1016/0022-3697(95)00220-0 | |
dc.description.sourcetitle | Journal of Physics and Chemistry of Solids | |
dc.description.volume | 57 | |
dc.description.issue | 2 | |
dc.description.page | 237-242 | |
dc.description.coden | JPCSA | |
dc.identifier.isiut | A1996TT38600015 | |
Appears in Collections: | Staff Publications |
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