Glassy Nuclei In Amorphous Ice

Download or read book Glassy Nuclei in Amorphous Ice written by Christina Maria Tonauer and published by Springer. This book was released on 2019-05-04 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.