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Title: Solidification and loss of hydrostaticity in liquid media used for pressure measurements

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4937478· OSTI ID:1249336

We carried out a study of the pressure dependence of the solidification temperature in nine pressure transmitting media that are liquid at ambient temperature, under pressures up to 2.3 GPa. These fluids are 1:1 isopentane/n-pentane, 4:6 light mineral oil/n-pentane, 1:1 isoamyl alcohol/n-pentane, 4:1 methanol/ethanol, 1:1 FC72/FC84 (Fluorinert), Daphne 7373, isopentane, and Dow Corning PMX silicone oils 200 and 60,000 cS. We relied on the high sensitivity of the electrical resistivity of Ba(Fe1–xRux)2As2 single crystals to the freezing of the pressure media and cross-checked with corresponding anomalies observed in the resistance of the manganin coil that served as the ambient temperature resistive manometer. In addition to establishing the temperature-pressure line separating the liquid (hydrostatic) and frozen (non-hydrostatic) phases, these data permit rough estimates of the freezing pressure of these media at ambient temperature. As a result, this pressure establishes the extreme limit for the medium to be considered hydrostatic. For higher applied pressures, the medium has to be treated as non-hydrostatic.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1249336
Alternate ID(s):
OSTI ID: 1229920
Report Number(s):
IS-J-8942; RSINAK
Journal Information:
Review of Scientific Instruments, Vol. 86, Issue 12; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 56 works
Citation information provided by
Web of Science

References (25)

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Pressure and temperature dependence of electrical resistivity of Pb and Sn from 1-300K and 0-10 GPa-use as continuous resistive pressure monitor accurate over wide temperature range; superconductivity under pressure in Pb, Sn and In journal March 1981
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Cited By (15)

Tricritical wings and modulated magnetic phases in LaCrGe3 under pressure journal September 2017
Measurements of elastoresistance under pressure by combining in-situ tunable quasi-uniaxial stress with hydrostatic pressure journal February 2020
First-principles calculations and Raman scattering evidence for local symmetry lowering in rhombohedral ilmenite: temperature- and pressure-dependent studies journal November 2018
Role of the Fermi surface for the pressure-tuned nematic transition in the BaFe 2 As 2 family journal August 2019
Multiple ferromagnetic transitions and structural distortion in the van der Waals ferromagnet VI 3 at ambient and finite pressures journal September 2019
Dome of magnetic order inside the nematic phase of sulfur-substituted FeSe under pressure journal July 2017
Quantum tricritical point in the temperature-pressure-magnetic field phase diagram of CeTiGe 3 journal January 2018
Pressure-temperature phase diagrams of CaK ( Fe 1 x Ni x ) 4 As 4 superconductors journal May 2018
Symmetric and antisymmetric strain as continuous tuning parameters for electronic nematic order journal December 2018
Physical properties of R Bi 2 ( R = La , Ce ) under pressure journal September 2019
Superconductivity in tin selenide under pressure journal November 2019
Dome of magnetic order inside the nematic phase of sulfur-substituted FeSe under pressure text January 2017
Measurements of elastoresistance under pressure by combining in-situ tunable quasi-uniaxial stress with hydrostatic pressure text January 2019
Preferential out-of-plane conduction and quasi-one-dimensional electronic states in layered 1T-TaS2 journal May 2020
Tricritical wings and modulated magnetic phases in LaCrGe$ _{3}$ under pressure text January 2016

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