TY - JOUR
T1 - On the Frequency Correction in Temperature-Modulated Differential Scanning Calorimetry of Glass Transition
AU - Guo, Xiaoju
AU - Mauro, J.C.
AU - Allan, D.C.
AU - Yue, Yuanzheng
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84862181411&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2012.05.006
DO - 10.1016/j.jnoncrysol.2012.05.006
M3 - Journal article
SN - 0022-3093
VL - 358
SP - 1710
EP - 1715
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 14
ER -