Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	A Review of the Fraction of Four-Coordinated Boron in Binary Borate Glasses
Δημιουργός/Συγγραφέας:	Alderman, Oliver L G Tagiara, Nagia S. Slagle, Ian T Gabrielsson, Rebecca Boggs, Piper Wagner, Molly Rossini, Aaron Martin, Steve W John, Sophia Rocha, Leilani Wilson, Robert M Hawbaker, Harry Hannon, Alex C [EL] Καμίτσος, Ευστράτιος Ι.[EN] Kamitsos, Efstratios I. Feller, Steve
Ημερομηνία:	2025-03-28
Γλώσσα:	Αγγλικά
ISSN:	0034-4885 1361-6633
DOI:	10.1088/1361-6633/adc69c
Άλλο:	40153869
Περίληψη:	In borate materials, boron is found predominantly in either trigonal planar, or tetrahedral coordination states with oxygen, which are the two most ubiquitous building blocks of borate glasses. The fraction of tetrahedral boron, N4, is found to vary considerably with both glass composition and applied pressure, as well as with fictive temperature - a result of its underlying dependence on temperature in the molten and supercooled liquid states. As such, the parameter N4 is of fundamental structural importance, along with the mechanisms driving its evolution and its strong influence on thermophysical material properties. N4 in glasses has been experimentally determined using a variety of means including nuclear magnetic resonance (NMR) spectroscopy, vibrational spectroscopy, and x-ray and neutron diffraction. In this review, we discuss how the techniques for the measurement of N4 have evolved and improved since the pioneering x-ray diffraction measurements of the 1930s, up to the present day. A database is compiled of the available high-quality numerical experimental data for N4, with a non-exclusive focus on binary borate glasses of the form M2Oz-B2O3 where M is a metal cation of formal charge z+, other than boron. In addition, we report new N4 values for a series of strontium borate glasses, measured by 11B magic angle spinning (MAS) NMR, where a disparity in the literature is found. Based on the findings of the review, we are able to point to the gaps in our knowledge where future resources could best be focused, as well as summarizing overarching trends, the present state-of-the-art, and making recommendations for best practices. .
Τίτλος πηγής δημοσίευσης:	Reports on progress in physics. Physical Society (Great Britain)
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry
Λέξεις-Κλειδιά:	binary borates glasses infrated N4 NMR diffraction material science
Κάτοχος πνευματικών δικαιωμάτων:	© 2025 The Author(s). Published by IOP Publishing Ltd
Όροι και προϋποθέσεις δικαιωμάτων:	As the Version of Record of this article is going to be / has been published on a gold open access basis under a CC BY 4.0 licence, this Accepted Manuscript is available for reuse under a CC BY 4.0 licence immediately. Everyone is permitted to use all or part of the original content in this article, provided that they adhere to all the terms of the licence https://creativecommons.org/licences/by/4.0 Although reasonable endeavours have been taken to obtain all necessary permissions from third parties to include their copyrighted content within this article, their full citation and copyright line may not be present in this Accepted Manuscript version. Before using any content from this article, please refer to the Version of Record on IOPscience once published for full citation and copyright details, as permissions may be required. All third party content is fully copyright protected and is not published on a gold open access basis under a CC BY licence, unless that is specifically stated in the figure caption in the Version of Record.
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1088/1361-6633/adc69c
Σημειώσεις:	Accepted Manuscript online 28 March 2025
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο