On the frequency correction in temperature-modulated differential scanning calorimetry of the glass transition

被引：17

作者：

Guo, Xiaoju ^{[1
,2
]}

Mauro, John C. ^{[1
]}

Allan, Douglas C. ^{[1
]}

Yue, Yuanzheng ^{[2
,3
]}

机构：

[1] Corning Inc, Div Sci & Technol, Corning, NY 14831 USA

[2] Aalborg Univ, Sect Chem, DK-9000 Aalborg, Denmark

[3] Shandong Polytech Univ, Shandong Key Lab Glass & Ceram, Jinan 250353, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2012年 / 358卷 / 14期

关键词：

Temperature-modulated differential scanning calorimetry; Frequency correction; Glass transition; Glass relaxation; STRETCHED EXPONENTIAL RELAXATION; NON-CRYSTALLINE SOLIDS; RIGIDITY TRANSITIONS; CHALCOGENIDE ALLOYS; INTERMEDIATE PHASE; CONSTRAINT THEORY; RANGE ORDER; PRINCIPLES; FRAGILITY; TOPOLOGY;

D O I：

10.1016/j.jnoncrysol.2012.05.006

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Temperature-modulated differential scanning calorimetry (TMDSC) is based on conventional DSC but with a sinusoidally modulated temperature path. Simulations of TMDSC signals were performed for Corning EAGLE XG glass over a wide range of modulation frequencies. Our results reveal that the frequency correction commonly used in the interpretation of TMDSC signals leads to a master nonreversing heat flow curve independent of modulation frequency, provided that sufficiently high frequencies are employed in the TMDSC measurement. A master reversing heat flow curve can also be generated through the frequency correction. The resulting glass transition temperature from the frequency corrected reversing heat flow is thereby shown to be independent of frequency. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1710 / 1715

页数：6

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