Pressure-induced elongation of hydrogen-oxygen bond in sodium silicate melts
Despite their importance in melting processes in the Earth's interior, the structure and properties of hydrous silicate melts at high pressure remain poorly constrained due to experimental challenges.Here we explore the structures of dry and hydrated (H2O and D2O) Na6Si8O19 melt at 0-6 GPa and 1000-1300 K and glasses recovered from high pressure and temperatures by in-situ neutron and X-ray diffraction.The structures of the melts at 0-10 GPa and 3000 K are also investigated by ab-initio molecular dynamics simulation.In-situ neutron experiments revealed that the D-O distance increases with
Authors
- Liang Yuan (ORCID: https://orcid.org/0000-0002-1372-5372)
- Gerd Steinle‐Neumann (ORCID: https://orcid.org/0000-0001-7455-6149)
- Tatsuya Sakamaki (ORCID: https://orcid.org/0000-0002-1158-844X)
- T. Ohashi (ORCID: https://orcid.org/0000-0002-2682-7415)
- Takanori Hattori (ORCID: https://orcid.org/0000-0002-1968-3732)
- Akio Suzuki
- Ken‐ichi Funakoshi
Institutions
- Japan Atomic Energy Agency (JP)
- Tohoku University (JP)
- Japan Proton Accelerator Research Complex (JP)
- Comprehensive Research Organization for Science and Society (JP)
- University of Bayreuth (DE)
- Bayer (Germany) (DE)
Publication Details
- Journal
- Journal of Mineralogical and Petrological Sciences
- Published
- 2025-01-01
- DOI
- https://doi.org/10.2465/jmps.240926a
- Citations
- 1
- Primary Topic
- Glass properties and applications
- Type
- article
- Field-Weighted Citation Impact
- 0.73