Liquid fragility determination of oxide glass‐formers using temperature‐modulated DSC

Tobias Bechgaard, Ozgur Gulbiten, John C. Mauro, Yuanzheng Yue, Mathieu Bauchy, Morten Mattrup Smedskjær

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Resumé

Glass-forming liquids exhibit a pronounced diversity in the viscosity-temperature relation. This has been characterized by the liquid fragility index to quantify the extent of the non-Arrhenian flow. Precise and accurate determination of liquid fragility is important for understanding a range of phenomena and controlling industrial glass melting processes. In this study, we use temperature-modulated differential scanning calorimetry (TM-DSC) to determine liquid fragility of a wide range of oxide compositions, including tellurites, borates, and silicates. We compare our fragility data to those determined using viscometry and the Moynihan DSC approach. We find that TM-DSC is a useful method for determination of fragility, as it exhibits higher sensitivity and provides an easier and more reliable determination of characteristic temperatures compared to the Moynihan approach. Moreover, TM-DSC is faster and requires smaller sample volume compared to the viscometric approach. However, we also observe that TM-DSC tends to either overestimate or underestimate the fragility of very strong and highly fragile compositions, respectively.

OriginalsprogEngelsk
TidsskriftInternational Journal of Applied Glass Science
Vol/bind10
Udgave nummer3
Sider (fra-til)321-329
Antal sider9
ISSN2041-1286
DOI
StatusUdgivet - jul. 2019

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Oxides
Differential scanning calorimetry
Liquids
Temperature
Silicates
Glass
Borates
Viscosity measurement
Chemical analysis
Melting
Viscosity

Citer dette

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title = "Liquid fragility determination of oxide glass‐formers using temperature‐modulated DSC",
abstract = "Glass-forming liquids exhibit a pronounced diversity in the viscosity-temperature relation. This has been characterized by the liquid fragility index to quantify the extent of the non-Arrhenian flow. Precise and accurate determination of liquid fragility is important for understanding a range of phenomena and controlling industrial glass melting processes. In this study, we use temperature-modulated differential scanning calorimetry (TM-DSC) to determine liquid fragility of a wide range of oxide compositions, including tellurites, borates, and silicates. We compare our fragility data to those determined using viscometry and the Moynihan DSC approach. We find that TM-DSC is a useful method for determination of fragility, as it exhibits higher sensitivity and provides an easier and more reliable determination of characteristic temperatures compared to the Moynihan approach. Moreover, TM-DSC is faster and requires smaller sample volume compared to the viscometric approach. However, we also observe that TM-DSC tends to either overestimate or underestimate the fragility of very strong and highly fragile compositions, respectively.",
author = "Tobias Bechgaard and Ozgur Gulbiten and Mauro, {John C.} and Yuanzheng Yue and Mathieu Bauchy and Smedskj{\ae}r, {Morten Mattrup}",
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Liquid fragility determination of oxide glass‐formers using temperature‐modulated DSC. / Bechgaard, Tobias; Gulbiten, Ozgur; Mauro, John C.; Yue, Yuanzheng; Bauchy, Mathieu; Smedskjær, Morten Mattrup.

I: International Journal of Applied Glass Science, Bind 10, Nr. 3, 07.2019, s. 321-329.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Liquid fragility determination of oxide glass‐formers using temperature‐modulated DSC

AU - Bechgaard, Tobias

AU - Gulbiten, Ozgur

AU - Mauro, John C.

AU - Yue, Yuanzheng

AU - Bauchy, Mathieu

AU - Smedskjær, Morten Mattrup

PY - 2019/7

Y1 - 2019/7

N2 - Glass-forming liquids exhibit a pronounced diversity in the viscosity-temperature relation. This has been characterized by the liquid fragility index to quantify the extent of the non-Arrhenian flow. Precise and accurate determination of liquid fragility is important for understanding a range of phenomena and controlling industrial glass melting processes. In this study, we use temperature-modulated differential scanning calorimetry (TM-DSC) to determine liquid fragility of a wide range of oxide compositions, including tellurites, borates, and silicates. We compare our fragility data to those determined using viscometry and the Moynihan DSC approach. We find that TM-DSC is a useful method for determination of fragility, as it exhibits higher sensitivity and provides an easier and more reliable determination of characteristic temperatures compared to the Moynihan approach. Moreover, TM-DSC is faster and requires smaller sample volume compared to the viscometric approach. However, we also observe that TM-DSC tends to either overestimate or underestimate the fragility of very strong and highly fragile compositions, respectively.

AB - Glass-forming liquids exhibit a pronounced diversity in the viscosity-temperature relation. This has been characterized by the liquid fragility index to quantify the extent of the non-Arrhenian flow. Precise and accurate determination of liquid fragility is important for understanding a range of phenomena and controlling industrial glass melting processes. In this study, we use temperature-modulated differential scanning calorimetry (TM-DSC) to determine liquid fragility of a wide range of oxide compositions, including tellurites, borates, and silicates. We compare our fragility data to those determined using viscometry and the Moynihan DSC approach. We find that TM-DSC is a useful method for determination of fragility, as it exhibits higher sensitivity and provides an easier and more reliable determination of characteristic temperatures compared to the Moynihan approach. Moreover, TM-DSC is faster and requires smaller sample volume compared to the viscometric approach. However, we also observe that TM-DSC tends to either overestimate or underestimate the fragility of very strong and highly fragile compositions, respectively.

U2 - 10.1111/ijag.13105

DO - 10.1111/ijag.13105

M3 - Journal article

VL - 10

SP - 321

EP - 329

JO - International Journal of Applied Glass Science

JF - International Journal of Applied Glass Science

SN - 2041-1286

IS - 3

ER -