In situ x-ray observation of the phase transformation of Fe2O3

被引：46

作者：

Ono, S

Funakoshi, K

Ohishi, Y

Takahashi, E

机构：

[1] Japan Agcy Marine Earth Sci & Technol, Inst Res Earth Evolut, Yokosuka, Kanagawa 2370061, Japan

[2] Japan Synchrotron Radiat Res Inst, Mikazuki, Hyogo 6795198, Japan

[3] Tokyo Inst Technol, Dept Earth & Planetary Sci, Tokyo 1528551, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2005年 / 17卷 / 02期

关键词：

D O I：

10.1088/0953-8984/17/2/003

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In situ observations of the phase transition in Fe2O3 were carried out in a multianvil and in a diamond anvil cell high-pressure apparatus using synchrotron radiation. The phase transition of haematite was observed at high pressures and high temperatures. The phase boundary between the haematite and high-pressure phase in the temperature range of 800-2500 K was determined to be P (GPa) = 29.4(+/-0.4) + 0.0046 (+/-0.0015) x (T (K) - 1000). This result should resolve a dispute regarding the transition pressure of haematite among previous studies on Fe2O3.

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页码：269 / 276

页数：8

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