Effect of Annealing on Structural and Thermodynamic Properties of ThSiO4-ErPO4Xenotime Solid Solution

Anna Shelyug; Mohamed Ruwaid Rafiuddin; Adel Mesbah; Nicolas Clavier; Stéphanie Szenknect; Nicolas Dacheux; Xiaofeng Guo; Alexandra Navrotsky

doi:10.1021/acs.inorgchem.1c01137

Effect of Annealing on Structural and Thermodynamic Properties of ThSiO₄-ErPO₄Xenotime Solid Solution

Anna Shelyug, Mohamed Ruwaid Rafiuddin, Adel Mesbah, Nicolas Clavier, Stéphanie Szenknect, Nicolas Dacheux, Xiaofeng Guo, Alexandra Navrotsky

Molecular Sciences, School of (SMS)

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1-xErx(SiO4)1-x(PO4)x was assessed. The samples synthesized at low temperatures and stored at room temperature for 2 years retained their tetragonal structures. This structure was also maintained after heating to 1100 °C. During annealing, the structure lost water and exsolved some thorianite phases. The thermodynamic parameters did not change much after annealing, suggesting that xenotime was not a low-temperature metastable phase but rather a stable structure able to withstand elevated temperatures regardless of the thorium content. The solid solution exhibited subregular behavior with the Margules function W(x) = (73.1 ± 20.1) - (125.7 ± 49.8)·x.

Original language	English (US)
Pages (from-to)	12020-12028
Number of pages	9
Journal	Inorganic chemistry
Volume	60
Issue number	16
DOIs	https://doi.org/10.1021/acs.inorgchem.1c01137
State	Published - Aug 16 2021

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/acs.inorgchem.1c01137

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title = "Effect of Annealing on Structural and Thermodynamic Properties of ThSiO4-ErPO4Xenotime Solid Solution",

abstract = "The effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1-xErx(SiO4)1-x(PO4)x was assessed. The samples synthesized at low temperatures and stored at room temperature for 2 years retained their tetragonal structures. This structure was also maintained after heating to 1100 °C. During annealing, the structure lost water and exsolved some thorianite phases. The thermodynamic parameters did not change much after annealing, suggesting that xenotime was not a low-temperature metastable phase but rather a stable structure able to withstand elevated temperatures regardless of the thorium content. The solid solution exhibited subregular behavior with the Margules function W(x) = (73.1 ± 20.1) - (125.7 ± 49.8)·x.",

author = "Anna Shelyug and Rafiuddin, {Mohamed Ruwaid} and Adel Mesbah and Nicolas Clavier and St{\'e}phanie Szenknect and Nicolas Dacheux and Xiaofeng Guo and Alexandra Navrotsky",

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doi = "10.1021/acs.inorgchem.1c01137",

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T1 - Effect of Annealing on Structural and Thermodynamic Properties of ThSiO4-ErPO4Xenotime Solid Solution

AU - Shelyug, Anna

AU - Rafiuddin, Mohamed Ruwaid

AU - Mesbah, Adel

AU - Clavier, Nicolas

AU - Szenknect, Stéphanie

AU - Dacheux, Nicolas

AU - Guo, Xiaofeng

AU - Navrotsky, Alexandra

PY - 2021/8/16

Y1 - 2021/8/16

N2 - The effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1-xErx(SiO4)1-x(PO4)x was assessed. The samples synthesized at low temperatures and stored at room temperature for 2 years retained their tetragonal structures. This structure was also maintained after heating to 1100 °C. During annealing, the structure lost water and exsolved some thorianite phases. The thermodynamic parameters did not change much after annealing, suggesting that xenotime was not a low-temperature metastable phase but rather a stable structure able to withstand elevated temperatures regardless of the thorium content. The solid solution exhibited subregular behavior with the Margules function W(x) = (73.1 ± 20.1) - (125.7 ± 49.8)·x.

AB - The effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1-xErx(SiO4)1-x(PO4)x was assessed. The samples synthesized at low temperatures and stored at room temperature for 2 years retained their tetragonal structures. This structure was also maintained after heating to 1100 °C. During annealing, the structure lost water and exsolved some thorianite phases. The thermodynamic parameters did not change much after annealing, suggesting that xenotime was not a low-temperature metastable phase but rather a stable structure able to withstand elevated temperatures regardless of the thorium content. The solid solution exhibited subregular behavior with the Margules function W(x) = (73.1 ± 20.1) - (125.7 ± 49.8)·x.

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Effect of Annealing on Structural and Thermodynamic Properties of ThSiO₄-ErPO₄Xenotime Solid Solution

Abstract

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