ANSTO Publications Online >
Journal Publications >
Journal Articles >
Please use this identifier to cite or link to this item:
|Title: ||Investigating the order-disorder phase transition in Nd2-xYxZr2O7via diffraction and spectroscopy|
|Authors: ||Blanchard, PER|
|Issue Date: ||1-Jan-2013|
|Publisher: ||Royal Society of Chemistry|
|Citation: ||Blanchard, P.E.R., Liu, S., Kennedy, B.J., Ling, C.D., Zhang, Z.M., Avdeev, M., Cowie, B.C.C., Thomsen, L., & Jang, L.Y. (2013). Investigating the order-disorder phase transition in nd2-xyxzr2o7 via diffraction and spectroscopy. Dalton Transactions, 42(41), 14875-14882.|
|Abstract: ||The pyrochlore-defect fluorite phase transition in the mixed-metal zirconate Nd2-xYxZr2O7 (0 <= x <= 2) solid solution was investigated using synchrotron X-ray and neutron diffraction, as well as X-ray absorption spectroscopy. Diffraction analysis revealed a two-phase region between 1.0 <= x <= 1.2. In the pyrochlore phase, Zr L-3-edge XANES analysis demonstrated a gradual change in the local coordination environment of the B site with increasing Y content that was consistent with an increase in disorder. Although Y L-3-edge XANES analysis suggested that the Y cations remained in an ordered coordination environment in the pyrochlore phase, disorder did gradually increase once the fluorite phase formed. It was found that Y cations prefer an ordered coordination environment near the phase boundary whereas Zr cations prefer a disordered coordination environment. © 2013, Royal Society of Chemistry|
|Appears in Collections:||Journal Articles|
Files in This Item:
There are no files associated with this item.
Items in APO are protected by copyright, with all rights reserved, unless otherwise indicated.