Equation of state of rhenium and application for ultra high pressure calibration

被引：95

作者：

Anzellini, Simone ^{[1
]}

Dewaele, Agnes ^{[1
]}

Occelli, Florent ^{[1
]}

Loubeyre, Paul ^{[1
]}

Mezouar, Mohamed ^{[2
]}

机构：

[1] CEA, DAM, DIF, F-91297 Arpajon, France

[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 04期

关键词：

X-RAY-DIFFRACTION; GPA; STRENGTH; IRON; MBAR;

D O I：

10.1063/1.4863300

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The isothermal equation of state of rhenium has been measured by powder X-ray diffraction experiments up to 144GPa at room temperature in a diamond anvil cell. A helium pressure transmitting medium was used to minimize the non-hydrostatic stress on the sample. The fit of pressure-volume data yields a bulk modulus K-0 = 352.6GPa and a pressure derivative of the bulk modulus K-0' = 4.56. This equation of state differs significantly from a recent determination [Dubrovinsky et al., Nat. Commun. 3, 1163 (2012)], giving here a lower pressure at a given volume. The possibility of using rhenium gasket X-ray diffraction signal, with the present equation of state, to evaluate multi-Mbar pressures in the chamber of diamond anvil cells is discussed. (C) 2014 AIP Publishing LLC.

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页数：6

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