Melting curve of H2O to 90 GPa measured in a laser-heated diamond cell

被引：85

作者：

Schwager, B ^{[1
]}

Chudinovskikh, L ^{[1
]}

Gavriliuk, A ^{[1
]}

Boehler, R ^{[1
]}

机构：

[1] Max Planck Inst Chem, D-55020 Mainz, Germany

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2004年 / 16卷 / 14期

关键词：

D O I：

10.1088/0953-8984/16/14/028

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report new data on the melting curve of H2O in the range 20-90 GPa and 1000-2400 K obtained in a laser-heated diamond anvil cell. We found a marked discrepancy between our present results and previous work which covered the pressure range up to 38 GPa. The melting curve shows a discontinuous change in slope at about 43 GPa, indicating a first-order phase transition most likely to the ice X phase. We could find no evidence for a strong dissociation of H2O up to 200 K above the melting temperatures.

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页码：S1177 / S1179

页数：3

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