SYNCHROTRON X-RAY STUDY OF IRON AT HIGH-PRESSURE AND TEMPERATURE

被引：121

作者：

SAXENA, SK ^{[1
]}

DUBROVINSKY, LS ^{[1
]}

HAGGKVIST, P ^{[1
]}

CERENIUS, Y ^{[1
]}

SHEN, G ^{[1
]}

MAO, HK ^{[1
]}

机构：

[1] CARNEGIE INST WASHINGTON, GEOPHYS LAB, WASHINGTON, DC 20015 USA

来源：

SCIENCE | 1995年 / 269卷 / 5231期

关键词：

D O I：

10.1126/science.269.5231.1703

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

X-ray synchrotron experiments with in situ laser heating of iron in a diamond-anvil cell show that the high-pressure epsilon phase, a hexagonal close-packed (hcp) structure, transforms to another phase (possibly a polytype double-layer hcp) at a pressure of about 38 gigapascals and at temperatures between 1200 and 1500 kelvin. This information has implications for the phase relations of iron in Earth's core.

引用

页码：1703 / 1704

页数：2

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