Synchrotron x-ray-diffraction study of alpha-cristobalite at high pressure and high temperature

被引：11

作者：

Onodera, A ^{[1
]}

Suito, K ^{[1
]}

Namba, J ^{[1
]}

Taniguchi, Y ^{[1
]}

Horikawa, T ^{[1
]}

Miyoshi, M ^{[1
]}

Shimomura, O ^{[1
]}

Kikegawa, T ^{[1
]}

机构：

[1] NATL LAB HIGH ENERGY PHYS,PHOTON FACTORY,TSUKUBA,IBARAKI 305,JAPAN

来源：

HIGH PRESSURE RESEARCH | 1997年 / 15卷 / 05期

关键词：

synchrotron x-ray diffraction; energy-dispersive; high pressure; cristobalite; silica; phase transition;

D O I：

10.1080/08957959708240478

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Energy-dispersive x-ray diffraction using synchrotron radiation was carried out on alpha-cristobalite to 3 GPa and 350 degrees C in a cubic anvil press. A cascading structural phase transition occurred beyond 0.61 GPa at room temperature, The transition was accompanied by a splitting of most of the cc-cristobalite reflections: the (111) reflection at 0.61 GPa through the (211) reflections at 2.13 GPa, with many other lines between. The pressure of this transition decreased with increasing temperature.

引用

页码：307 / 319

页数：13

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