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A review is given of the 16th International Conference on the Physics of Non-Crystalline
Solids. PNCS16 was held at the University of Kent in Canterbury, United Kingdom, on 11-
15 July 2022. This was a special time, because it came shortly after the end of periods of
lockdown during the Covid-19 lockdown, and it was the first opportunity for many
delegates to meet with international colleagues in the shared endeavour to study the physics
of non-crystalline solids. Delegates came from 26 countries, and 141 presentations were
given, covering a wide range of topics from applied subjects, such as nuclear waste storage
and bioactive glasses, to theoretical subjects, such as the nature of the glass transition and
theoretical simulation of glass structures. Special sessions were held in honour of esteemed
colleagues, Austen Angell and Neville Greaves, who had recently passed away. Two prizes
were presented for the best oral presentations by students, and two more prizes were
presented for the best posters.
Vitreous BeF2 has a structure formed of corner-sharing BeF4 tetrahedra, which appears to
be similar to that of vitreous SiO2. The strength of Be-F bonds is much less than that of the
Si-O bond, and thus BeF2 may be considered a weakened analogue of SiO2. BeF2, however,
is much less studied than SiO2 due mainly to its high toxicity. A report is given of a neutron
diffraction study of the structure of vitreous BeF2, with particular emphasis on the bond
angle distribution, both in BeF2 and in other similar systems.

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• Creative Commons BY Attribution 4.0 International
  

Keyword: PNCS17, oxide glass, neutron diffraction

Conference: The 17th International Conference on the Physics of Non-Crystalline Solids (PNCS17) ()

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Manuscript type: Not a journal article

MDR DOI: https://doi.org/10.48505/nims.5778

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Updated at: 2025-09-25 16:30:32 +0900

Published on MDR: 2025-09-25 16:20:18 +0900