Densified low-hygroscopic form of P2O5 glass

V. V. Brazhkin; J. Akola; Y. Katayama; S. Kohara; M. V. Kondrin; A. G. Lyapin; S. G. Lyapin; G. Tricot; O. F. Yagafarov

doi:10.1039/C1JM10889A

Densified low-hygroscopic form of P₂O₅ glass†

V. V. Brazhkin,*^a J. Akola,‡^b Y. Katayama,^c S. Kohara,^d M. V. Kondrin,^a A. G. Lyapin,^a S. G. Lyapin,^a G. Tricot^e and O. F. Yagafarov^a

Author affiliations

* Corresponding authors

^a Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow region, Russia
E-mail: brazhkin@hppi.troitsk.ru

^b Nanoscience Center, Department of Physics, University of Jyvaskyla, P.O. Box 35, Jyvaskyla, Finland

^c Japan Atomic Energy Agency (JAEA), SPring-8, 1-1-1 Kuoto, Sayo-cho, Sayo-gun, Hyogo, Japan

^d Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kuoto, Sayo-cho, Sayo-gun, Hyogo, Japan

^e Unité de Catalyse et Chimie du Solide UMR CNRS 8181, University of Science and Technologies of Lille, National Chemistry School of Lille, Villeneuve d'Ascq, France

Abstract

P₂O₅ compound is an archetypical glass-forming oxide with a record-high hygroscopicity, which makes both the study and potential industrial uses of the glass extremely difficult. We found that the quenching from the P₂O₅ melt under ultrahigh pressures enables obtaining densified P₂O₅ glasses with a residual densification up to 12% at normal conditions. These glasses have a low hygroscopicity and can exist under air conditions for several weeks. An examination of the structure of the new form of P₂O₅ glass reveals a significant increase in neighbors of terminal oxygen atoms in the second coordination sphere and a cardinal decrease of the volume of nanovoids in the glassy matrix. The research on the physical properties of a non-hygroscopic form of P₂O₅ glass will possibly allow it to be used for the synthesis of new phosphate glasses and their applications.

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Article information

DOI: https://doi.org/10.1039/C1JM10889A
Article type: Paper
Submitted: 01 Mar 2011
Accepted: 27 Apr 2011
First published: 15 Jun 2011

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J. Mater. Chem., 2011,21, 10442-10447

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Densified low-hygroscopic form of P₂O₅ glass

V. V. Brazhkin, J. Akola, Y. Katayama, S. Kohara, M. V. Kondrin, A. G. Lyapin, S. G. Lyapin, G. Tricot and O. F. Yagafarov, J. Mater. Chem., 2011, 21, 10442 DOI: 10.1039/C1JM10889A

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Journal of Materials Chemistry