Structural change in phosphate-based glassy precursors to superionic conducting glass-ceramic electrolytes
The onset of homogeneous nucleation in the Na_(1+x)Ge_(2-x)Al_x(PO4)_3 family of phosphate materials will be investigated using neutron diffraction. The crystalline phases of these materials are superionic conductors, and are best prepared via the glass-ceramic route to create a uniform distribution of crystallites of controllable size and shape throughout the bulk material. The objectives are to (1) measure the coordination environment of Ge, (2) understand the structural relationship between an ion-conducting glass ceramic and its precursor glass, and (3) monitor the structural rearrangements that occur during the early stages of crystallization. The latter is of general scientific interest for any glass undergoing homogeneous nucleation, but has not been explored in non-siliceous systems.
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SALMON Philip Stephen; ECKERT Hellmut; Henry E. Fischer; Lawrence Vincent Daniel Gammond; Rita Silva; Hesameddin Mohammadi and ZEIDLER Anita. (2019). Structural change in phosphate-based glassy precursors to superionic conducting glass-ceramic electrolytes. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-05-1009
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