Equation of state of solid Ne inter-calibrated with the MgO, Au, Pt, NaCl-B2, and ruby pressure scales up to 130GPa

被引:26
作者
Ye, Yu [1 ,2 ]
Shim, Sang-Heon [2 ]
Prakapenka, Vitali [3 ]
Meng, Yue [4 ]
机构
[1] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan, Hubei, Peoples R China
[2] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA
[3] Univ Chicago, GSECARS, Chicago, IL 60637 USA
[4] Carnegie Inst Sci, Washington, DC USA
基金
美国国家科学基金会; 中国国家自然科学基金;
关键词
Solid Ne; diamond anvil cell; equation of state; pressure transmission medium; laser annealing; X-RAY-DIFFRACTION; LASER-HEATING SYSTEM; THERMAL-EXPANSION; GPA; ELASTICITY; DIAMOND; METALS; STRAIN; XENON; COMPRESSIBILITY;
D O I
10.1080/08957959.2018.1493477
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We measured the unit-cell volume of thermally annealed solid Ne at 30-130GPa, which is loaded together with MgO and Pt or Au in diamond-anvil cells. Laser annealing significantly reduced the deviatoric stress and the data scatter. We fit our data to the 3rd-order Birch-Murnaghan and Vinet equations of state (EOS) with the MgO pressure scale from [Ye Y, Prakapenka V, Meng Y, Shim SH. J Geophys Res. 2017;122:3450] (hereafter MgO-Y17 scale). In order to make consistent comparison, we converted the pressures of the reported datasets for isothermal compression on Ne, so that they are consistent with the MgO-Y17 scale. The discrepancy among different datasets reduces significantly after pressure conversion. We also identified the internally consistent EOSs of Ne, MgO, Pt, Au and NaCl-B2, together with the ruby scale. Our findings contribute to internally consistent comparison of different experimental datasets on the pressure-dependent behaviors of materials.
引用
收藏
页码:377 / 395
页数:19
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