Homogeneous nucleation in phosphate-based glassy precursors to fast-ion conducting glass-ceramic electrolytes

DOI

The structure of the phosphate materials Na_{1+x}Ge_{2-x}Al_x(PO_4)_3 with x = 0, 0.4 and 0.8 will be investigated using high real-space resolution neutron diffraction. In the crystalline phases with x = 0.4 and 0.8, fast-sodium ion conductivity occurs. These solid electrolyte materials are best prepared via the glass-ceramic route, which indicates a homogeneous nucleation mechanism. The objectives are (1) to understand the structural relationship between an ion-conducting glass ceramic and its precursor glass, and (2) to monitor the structural rearrangements that may occur during the early stages of crystallization. The latter is of general scientific interest for any glass undergoing homogeneous nucleation, and has never been explored in non-siliceous systems. The experiments will reveal the Ge coordination environment, which is inaccessible from spectroscopic methods.

Identifier
DOI https://doi.org/10.5286/ISIS.E.99688500
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/99688500
Provenance
Creator Mr Alex Brandon-Bravo; Miss Olivia de Sousa Costa; Dr Alex Hannon; Dr Anita Zeidler; Mr Lawrence Gammond; Miss Rita Silva; Professor Hellmut Eckert; Professor Phil Salmon
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 2018-12-11T08:00:00Z
Temporal Coverage End 2019-01-18T01:11:48Z