Experimental evidence for two distinct deeply supercooled liquid states of water - Response to "comment on 'Water's second glass transition"', by G.P. Johari, Thermochim. Acta (2015)

J. Stern; M. Seidl; C. Gainaru; V. Fuentes-Landete; K. Amann-Winkel; P. H. Handle; K. W. Köster; H. Nelson; R. Böhmer; T. Loerting

doi:10.1016/j.tca.2015.08.030

Experimental evidence for two distinct deeply supercooled liquid states of water - Response to "comment on 'Water's second glass transition"', by G.P. Johari, Thermochim. Acta (2015)

J. Stern
, M. Seidl
, C. Gainaru
, V. Fuentes-Landete
, K. Amann-Winkel
, P. H. Handle
, K. W. Köster
, H. Nelson
, R. Böhmer
, T. Loerting

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Recently, our earlier data which led us to conclude that deeply supercooled water displays a second glass transition (Amann-Winkel et al., 2013) was reinterpreted (Johari, 2015). In particular, the increase in heat capacity observed for high-density amorphous ice (HDA) samples at 116 K was reinterpreted to indicate sub-T_g features of low-density amorphous ice's (LDA's) glass transition. We reply to the criticism in detail and report an experiment triggered by the comment on our work. This experiment unequivocally confirms our original interpretation of the observations and reinforces the case for water's second glass transition, its polyamorphism, and the observation of two distinct ultraviscous states of water differing by about 25% in density.

Original language	English
Pages (from-to)	200-207
Number of pages	8
Journal	Thermochimica Acta
Volume	617
DOIs	https://doi.org/10.1016/j.tca.2015.08.030
State	Published - Oct 10 2015
Externally published	Yes

Funding

We are thankful to the Austrian Science Fund FWF (START award Y391 and project I1392) and the Alexander von Humboldt Foundation (Friedrich Wilhelm Bessel award to T.L.) for financial support. Work at the Technische Universität Dortmund was supported by the Deutsche Forschungsgemeinschaft.

Keywords

Amorphous ices
Deeply supercooled liquid water
Dielectric relaxation spectroscopy
Differential scanning calorimetry
Glass transitions
Metastability
Polyamorphism

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10.1016/j.tca.2015.08.030

Cite this

Stern, J., Seidl, M., Gainaru, C., Fuentes-Landete, V., Amann-Winkel, K., Handle, P. H., Köster, K. W., Nelson, H., Böhmer, R., & Loerting, T. (2015). Experimental evidence for two distinct deeply supercooled liquid states of water - Response to "comment on 'Water's second glass transition"', by G.P. Johari, Thermochim. Acta (2015). Thermochimica Acta, 617, 200-207. https://doi.org/10.1016/j.tca.2015.08.030

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abstract = "Recently, our earlier data which led us to conclude that deeply supercooled water displays a second glass transition (Amann-Winkel et al., 2013) was reinterpreted (Johari, 2015). In particular, the increase in heat capacity observed for high-density amorphous ice (HDA) samples at 116 K was reinterpreted to indicate sub-Tg features of low-density amorphous ice's (LDA's) glass transition. We reply to the criticism in detail and report an experiment triggered by the comment on our work. This experiment unequivocally confirms our original interpretation of the observations and reinforces the case for water's second glass transition, its polyamorphism, and the observation of two distinct ultraviscous states of water differing by about 25\% in density.",

keywords = "Amorphous ices, Deeply supercooled liquid water, Dielectric relaxation spectroscopy, Differential scanning calorimetry, Glass transitions, Metastability, Polyamorphism",

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Stern, J, Seidl, M, Gainaru, C, Fuentes-Landete, V, Amann-Winkel, K, Handle, PH, Köster, KW, Nelson, H, Böhmer, R & Loerting, T 2015, 'Experimental evidence for two distinct deeply supercooled liquid states of water - Response to "comment on 'Water's second glass transition"', by G.P. Johari, Thermochim. Acta (2015)', Thermochimica Acta, vol. 617, pp. 200-207. https://doi.org/10.1016/j.tca.2015.08.030

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AU - Stern, J.

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AU - Gainaru, C.

AU - Fuentes-Landete, V.

AU - Amann-Winkel, K.

AU - Handle, P. H.

AU - Köster, K. W.

AU - Nelson, H.

AU - Böhmer, R.

AU - Loerting, T.

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KW - Differential scanning calorimetry

KW - Glass transitions

KW - Metastability

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Experimental evidence for two distinct deeply supercooled liquid states of water - Response to "comment on 'Water's second glass transition"', by G.P. Johari, Thermochim. Acta (2015)

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