TY - JOUR
T1 - Coarse-grained model of the glass transition in network-forming oxides
AU - Sidebottom, David L.
N1 - Publisher Copyright:
© 2020 American Ceramic Society
PY - 2021/5
Y1 - 2021/5
N2 - Properties of network-forming oxide glasses, including both the glass transition point and fragility, are often associated with the density of covalent bonds that impose mechanical constraints on the structure. Yet, even in the simplest of alkali-modified oxides, inconsistencies exist that have remained unanswered for many decades. Here we highlight these inconsistencies and demonstrate how an alternative measure of the bond density, arrived at through coarse-graining of certain rigid structures present in the network, could resolve these puzzles and provide a single-parameter description of the glass transition in network-forming materials.
AB - Properties of network-forming oxide glasses, including both the glass transition point and fragility, are often associated with the density of covalent bonds that impose mechanical constraints on the structure. Yet, even in the simplest of alkali-modified oxides, inconsistencies exist that have remained unanswered for many decades. Here we highlight these inconsistencies and demonstrate how an alternative measure of the bond density, arrived at through coarse-graining of certain rigid structures present in the network, could resolve these puzzles and provide a single-parameter description of the glass transition in network-forming materials.
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U2 - 10.1111/jace.17641
DO - 10.1111/jace.17641
M3 - Article
AN - SCOPUS:85099917955
VL - 104
SP - 2007
EP - 2016
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 5
ER -