The role of the network-modifier's field-strength in the chemical durability of aluminoborate glasses

Tandré Oey, Anne Kristine F. Frederiksen, Nerea Mascaraque Alvarez, Randall E. Youngman, Magdalena Balonis, Morten Mattrup Smedskjær, Mathieu Bauchy, Gaurav Sant

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

3 Citationer (Scopus)

Resumé

Aluminoborate glasses find use as sealants in numerous energy-storage and biomedical devices. However, a primary shortcoming of this glass family is its chemical durability, particularly when they may be exposed to alkaline (aqueous) environments. The structural features of such glasses, namely the network-modifying elements are thought to regulate such durability, e.g., due to the changes they induce in the coordination of network-forming elements. Herein, by systematic analyses of dissolution rates – a proxy for chemical durability – of a wide range of aluminoborate glasses containing network modifiers of diverse field strengths, it is shown that network modifiers affect the atomic topology of the glass network in relation to field strength. This reveals a general scaling of aluminoborate glass dissolution rates as a function of their atomic network's rigidity. The outcomes highlight pathways that could be used to improve the chemical durability of aluminoborate glasses by compositional alterations (i.e., selecting network modifiers) that enhance network rigidity.

OriginalsprogEngelsk
TidsskriftJournal of Non-Crystalline Solids
Vol/bind505
Sider (fra-til)279-285
Antal sider7
ISSN0022-3093
DOI
StatusUdgivet - 1 feb. 2019

Fingerprint

durability
field strength
Durability
Glass
glass
Rigidity
rigidity
Dissolution
dissolving
sealers
Sealants
Energy storage
energy storage
Topology
topology
scaling

Citer dette

Oey, Tandré ; Frederiksen, Anne Kristine F. ; Mascaraque Alvarez, Nerea ; Youngman, Randall E. ; Balonis, Magdalena ; Smedskjær, Morten Mattrup ; Bauchy, Mathieu ; Sant, Gaurav. / The role of the network-modifier's field-strength in the chemical durability of aluminoborate glasses. I: Journal of Non-Crystalline Solids. 2019 ; Bind 505. s. 279-285.
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abstract = "Aluminoborate glasses find use as sealants in numerous energy-storage and biomedical devices. However, a primary shortcoming of this glass family is its chemical durability, particularly when they may be exposed to alkaline (aqueous) environments. The structural features of such glasses, namely the network-modifying elements are thought to regulate such durability, e.g., due to the changes they induce in the coordination of network-forming elements. Herein, by systematic analyses of dissolution rates – a proxy for chemical durability – of a wide range of aluminoborate glasses containing network modifiers of diverse field strengths, it is shown that network modifiers affect the atomic topology of the glass network in relation to field strength. This reveals a general scaling of aluminoborate glass dissolution rates as a function of their atomic network's rigidity. The outcomes highlight pathways that could be used to improve the chemical durability of aluminoborate glasses by compositional alterations (i.e., selecting network modifiers) that enhance network rigidity.",
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The role of the network-modifier's field-strength in the chemical durability of aluminoborate glasses. / Oey, Tandré; Frederiksen, Anne Kristine F.; Mascaraque Alvarez, Nerea; Youngman, Randall E.; Balonis, Magdalena; Smedskjær, Morten Mattrup; Bauchy, Mathieu; Sant, Gaurav.

I: Journal of Non-Crystalline Solids, Bind 505, 01.02.2019, s. 279-285.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - The role of the network-modifier's field-strength in the chemical durability of aluminoborate glasses

AU - Oey, Tandré

AU - Frederiksen, Anne Kristine F.

AU - Mascaraque Alvarez, Nerea

AU - Youngman, Randall E.

AU - Balonis, Magdalena

AU - Smedskjær, Morten Mattrup

AU - Bauchy, Mathieu

AU - Sant, Gaurav

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Aluminoborate glasses find use as sealants in numerous energy-storage and biomedical devices. However, a primary shortcoming of this glass family is its chemical durability, particularly when they may be exposed to alkaline (aqueous) environments. The structural features of such glasses, namely the network-modifying elements are thought to regulate such durability, e.g., due to the changes they induce in the coordination of network-forming elements. Herein, by systematic analyses of dissolution rates – a proxy for chemical durability – of a wide range of aluminoborate glasses containing network modifiers of diverse field strengths, it is shown that network modifiers affect the atomic topology of the glass network in relation to field strength. This reveals a general scaling of aluminoborate glass dissolution rates as a function of their atomic network's rigidity. The outcomes highlight pathways that could be used to improve the chemical durability of aluminoborate glasses by compositional alterations (i.e., selecting network modifiers) that enhance network rigidity.

AB - Aluminoborate glasses find use as sealants in numerous energy-storage and biomedical devices. However, a primary shortcoming of this glass family is its chemical durability, particularly when they may be exposed to alkaline (aqueous) environments. The structural features of such glasses, namely the network-modifying elements are thought to regulate such durability, e.g., due to the changes they induce in the coordination of network-forming elements. Herein, by systematic analyses of dissolution rates – a proxy for chemical durability – of a wide range of aluminoborate glasses containing network modifiers of diverse field strengths, it is shown that network modifiers affect the atomic topology of the glass network in relation to field strength. This reveals a general scaling of aluminoborate glass dissolution rates as a function of their atomic network's rigidity. The outcomes highlight pathways that could be used to improve the chemical durability of aluminoborate glasses by compositional alterations (i.e., selecting network modifiers) that enhance network rigidity.

KW - Coordination

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KW - Glass

KW - Network-modifiers

KW - Topological constraint theory

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DO - 10.1016/j.jnoncrysol.2018.11.019

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EP - 285

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