Details
Glassy Nuclei in Amorphous Ice
Novel Evidence for the Two-Liquids Nature of WaterBestMasters
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53,49 € |
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| Verlag: | Spektrum Akademischer Verlag bei Elsevier |
| Format: | |
| Veröffentl.: | 04.05.2019 |
| ISBN/EAN: | 9783658263249 |
| Sprache: | englisch |
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Beschreibungen
<div>Christina Maria Tonauer finds novel evidence for the first-order nature of the transition between high-density amorphous ice (HDA) and low-density amorphous ice (LDA), supporting water’s liquid-liquid transition scenarios. Pressure-dependent crystallisation experiments of differently prepared expanded high-density amorphous ice samples (eHDA) and subsequent powder x-ray diffraction experiments disclose nucleation of LDA domains in bulk HDA, a typical feature of a first-order transition. The comparison of pressure-dependent crystallisation temperatures of eHDA samples with LDA nuclei and bulk LDA allows the estimation of the Laplace pressure and the size of a LDA nucleus.</div><div><br></div>
<div>Water’s Polyamorphism.- High-Pressure <i>in situ</i> Volumetry and Powder X-Ray Diffraction Studies of Amorphous Ices.- Nucleation of Glassy Nuclei in High-Density Amorphous Ice.- Phase Transitions in Nanosized Amorphous Nuclei.</div><div><br></div>
<div>Christina Maria Tonauer is currently a doctoral candidate at the Institute of Physical Chemistry at the University of Innsbruck, Austria. The focus of her scientific interests is on the physico-chemical characteristics and the reactivity of crystalline and amorphous water ices.</div><div><br></div>
<div>Christina Maria Tonauer finds novel evidence for the first-order nature of the transition between high-density amorphous ice (HDA) and low-density amorphous ice (LDA), supporting water’s liquid-liquid transition scenarios. Pressure-dependent crystallisation experiments of differently prepared expanded high-density amorphous ice samples (eHDA) and subsequent powder x-ray diffraction experiments disclose nucleation of LDA domains in bulk HDA, a typical feature of a first-order transition. The comparison of pressure-dependent crystallisation temperatures of eHDA samples with LDA nuclei and bulk LDA allows the estimation of the Laplace pressure and the size of a LDA nucleus.</div><div><br></div><div><b>Contents</b></div><div><ul><li>Water’s Polyamorphism</li><li>High-Pressure <i>in situ</i> Volumetry and Powder X-Ray Diffraction Studies of Amorphous Ices</li><li>Nucleation of Glassy Nuclei in High-Density Amorphous Ice</li><li>Phase Transitions in Nanosized Amorphous Nuclei</li></ul></div><div><b>Target Groups</b><br></div><div><ul><li>University lecturers, students, and researchers (experimentalists and theoreticians) working in the field of water science, focusing on anomalies of cold and supercooled water</li><li>Material scientists and engineers in the field of amorphous systems</li></ul></div><div><b>The Author</b><br></div><div>Christina Maria Tonauer is currently a doctoral candidate at the Institute of Physical Chemistry at the University of Innsbruck, Austria. The focus of her scientific interests is on the physico-chemical characteristics and the reactivity of crystalline and amorphous water ices.</div>
Publication in the field of natural sciences Reviews advances in water science New experimental findings about the nature of water
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