CALORIMETRIC STUDY OF PRESSURE-AMORPHIZED CUBIC ICE

被引：54

作者：

JOHARI, GP ^{[1
]}

HALLBRUCKER, A ^{[1
]}

MAYER, E ^{[1
]}

机构：

[1] UNIV INNSBRUCK,INST ANORGAN & ANALYT CHEM,A-6020 INNSBRUCK,AUSTRIA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1990年 / 94卷 / 04期

关键词：

D O I：

10.1021/j100367a003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High pressures can collapse a crystal to an amorphous solid whose properties differ from those of a vitrified solid. Here we report the thermal behavior of a high-density amorphous solid water produced by compression of cubic ice (which has no melting curve) up to 18 kbar. On heating, a rearrangement of H-bonds converts it to a structure with a glass → liquid transition temperature 6 K lower than that of glassy water. These have implications for our understanding of water's structures and are first observations of an amorphous solid transforming back to the same metastable crystal state from which it was prepared. © 1990 American Chemical Society.

引用

页码：1212 / 1214

页数：3