Study of liquid gallium as a function of pressure and temperature using synchrotron x-ray microtomography and x-ray diffraction

The volume change of liquid and solid gallium has been studied as a function of pressure and temperature up to 3.02 GPa at 300 K and up to 3.63 GPa at 330 K using synchrotron x-ray microtomography combined with energy dispersive x-ray diffraction techniques. Two sets of directly measured P-V data at...

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Bibliographic Details
Published in:Applied physics letters 2014-07, Vol.105 (4)
Main Authors: Li, Renfeng, Li, Liangliang, Yu, Tony, Wang, Luhong, Chen, Jiaxuan, Wang, Yanbin, Cai, Zhonghou, Chen, Jiuhua, Rivers, Mark L., Liu, Haozhe
Format: Article
Language:English
Subjects:
Applied physics
COMPRESSIBILITY
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
GALLIUM
LIQUID METALS
Liquid phases
PHASE TRANSFORMATIONS
Phase transitions
PRESSURE DEPENDENCE
PRESSURE RANGE GIGA PA
SOLIDS
SYNCHROTRON RADIATION
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
TOMOGRAPHY
X RADIATION
X ray microtomography
X-RAY DIFFRACTION
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Summary:The volume change of liquid and solid gallium has been studied as a function of pressure and temperature up to 3.02 GPa at 300 K and up to 3.63 GPa at 330 K using synchrotron x-ray microtomography combined with energy dispersive x-ray diffraction techniques. Two sets of directly measured P-V data at 300 K and 330 K were obtained from 3D tomography reconstruction data, and the corresponding isothermal bulk moduli were determined as 23.6 (0.5) GPa and 24.6 (0.4) GPa, respectively. The existence of a liquid-liquid phase transition region is proposed based on the abnormal compressibility of Ga melt at about 2.44 GPa and 330 K conditions.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4891572