Tonauer Glassy Nuclei in Amorphous Ice

Novel Evidence for the Two-Liquids Nature of Water
1. Auflage 2019
ISBN: 978-3-658-26324-9
Verlag: Springer
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 76 Seiten, Web PDF

Reihe: Chemistry and Material Science (R0)

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.

Zielgruppe

Research

Autoren/Hrsg.

Tonauer, Christina Maria

Inhaltsverzeichnis

Water’s Polyamorphism.- High-Pressure in situ 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.

Über Autor(innen)

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.