This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1016/j.jssc.2016.09.032 in citations.
Please use the identifier: http://hdl.handle.net/2128/16142 in citations.
Structural, vibrational, and thermochemical properties of the monazite-type solid solution La$_{1–x}$Pr$_{x}$PO$_{4}$
Structural, vibrational, and thermochemical properties of the monazite-type solid solution La$_{1–x}$Pr$_{x}$PO$_{4}$
The monazite-type solid solution La$_{1–x}$Pr$_{x}$PO$_{4}$ was synthesized by solid-state reaction and extensively investigated using electron microprobe and thermogravimetric analyses, differential scanning and high-temperature oxide melt solution calorimetry, powder X-ray diffraction, infrared an...
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Personal Name(s): | Hirsch, A. (Corresponding author) |
---|---|
Kegler, P. / Alencar, I. / Ruiz-Fuertes, J. / Shelyug, A. / Peters, L. / Schreinemachers, C. / Neumann, Andreas / Neumeier, S. / Liermann, H.-P. / Navrotsky, A. / Roth, G. | |
Contributing Institute: |
Nukleare Entsorgung; IEK-6 |
Published in: | Journal of solid state chemistry, 245 (2017) S. 82 - 88 |
Imprint: |
Orlando, Fla.
Academic Press
2017
|
DOI: |
10.1016/j.jssc.2016.09.032 |
Document Type: |
Journal Article |
Research Program: |
Nuclear Waste Management |
Link: |
Restricted Published on 2016-10-08. Available in OpenAccess from 2018-10-08. Restricted Published on 2016-10-08. Available in OpenAccess from 2018-10-08. |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/16142 in citations.
The monazite-type solid solution La$_{1–x}$Pr$_{x}$PO$_{4}$ was synthesized by solid-state reaction and extensively investigated using electron microprobe and thermogravimetric analyses, differential scanning and high-temperature oxide melt solution calorimetry, powder X-ray diffraction, infrared and Raman spectroscopy. Lattice parameters and Ln-O bond lengths show a decrease with increasing Pr content. A small excess volume is observed for the solid solution. IR spectra of the solid solution members present no detectable differences, while a blue shift of the PO4-related modes is seen in the Raman data. This shift can be attributed to the lanthanide contraction. Within errors, calorimetry data show no systematic deviation from an ideal behavior, though one might interpret the data as an indication of a slightly asymmetric mixture. All data indicate that deviations from ideality of the solid solution – if present – are very small. |