Density and elastic properties of liquid gallium up to 10 GPa using X-ray absorption method combined with externally heated diamond anvil cell

IF 1.2 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

High Pressure Research Pub Date : 2021-10-02 DOI:10.1080/08957959.2021.1998478

R. Tsuruoka, H. Terasaki, S. Kamada, F. Maeda, T. Kondo, N. Hirao, S. Kawaguchi, Iori Yamada, S. Urakawa, A. Machida

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Abstract

ABSTRACT The density of liquid metals at high pressure and high-temperature provides fundamental and important information for understanding their compression behavior and elastic properties. In this study, the densities of liquid gallium (Ga) were measured up to 10 GPa and 533 K using the X-ray absorption method combined with an externally heated diamond anvil cell. The elastic properties (the isothermal bulk modulus (KT0 ), and its pressure derivative (KT0’)) of liquid Ga were obtained by fitting the density data with three equations of state (EOSs) (Murnaghan, third order Birch–Murnaghan, and Vinet). The KT0 values of liquid Ga were determined to be 45.7 ± 1.0–51.7 ± 1.0 GPa at 500 K assuming KT0’ values of 4–6. The obtained KT0 or KT0 ′ showed almost the same values regardless of the EOS used. Compared with previous results, the compression curve of liquid Ga obtained in this study had a slightly stiffer trend at higher pressures.

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利用X射线吸收法结合外部加热的金刚石砧座电池研究高达10GPa的液态镓的密度和弹性特性

液态金属在高压和高温下的密度为理解其压缩行为和弹性特性提供了基本而重要的信息。在这项研究中，液态镓（Ga）的密度被测量到高达10 GPa和533 K，使用X射线吸收法结合外部加热的金刚石砧单元。通过用三个状态方程（EOS）（Murnaghan、三阶Birch–Murnaghan和Vinet）拟合密度数据，获得了液态Ga的弹性特性（等温体积模量（KT0）及其压力导数（KT0'））。液体Ga的KT0值被确定为45.7 ± 1.0–51.7 ± 1 500时的GPa K，假定KT0’值为4–6。无论使用何种EOS，所获得的KT0或KT0′都显示出几乎相同的值。与以前的结果相比，本研究中获得的液态Ga的压缩曲线在更高的压力下具有略硬的趋势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Pressure Research 物理-物理：综合

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

2 months

期刊介绍： High Pressure Research is the leading journal for research in high pressure science and technology. The journal publishes original full-length papers and short research reports of new developments, as well as timely review articles. It provides an important forum for the presentation of experimental and theoretical advances in high pressure science in subjects such as: condensed matter physics and chemistry geophysics and planetary physics synthesis of new materials chemical kinetics under high pressure industrial applications shockwaves in condensed matter instrumentation and techniques the application of pressure to food / biomaterials Theoretical papers of exceptionally high quality are also accepted.