Results 11 to 20 of about 1,120,137 (290)
A high temperature, high pressure reaction-screening apparatus [PDF]
Journal of Research of the National Bureau of Standards, 1985 This short note describes an apparatus that has been designed and constructed to allow assessment of the extent of chemical decomposition of fluids and fluid mixtures under high temperature, high pressure conditions. The apparatus is used to screen fluid systems prior to PVT (pressure-volume-temperature) or VLE (vapor-liquid equilibrium) experiments ...
Thomas J, Bruno, Gretchen L, Hume
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Effect of chemical composition on the electrical conductivity of gneiss at high temperatures and pressures [PDF]
Solid Earth, 2018 The electrical conductivity of gneiss samples with different chemical compositions (WA = Na2O + K2O + CaO = 7.12, 7.27 and 7.64 % weight percent) was measured using a complex impedance spectroscopic technique at 623–1073 K and 1.5 GPa and a ...
L. Dai +6 more
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Frontiers in Earth Science, 2022 We investigated the structural, vibrational, and electrical transport properties for natural barite under the conditions of 298–873 K and 1.5–35.0 GPa using a diamond anvil cell by virtue of Raman spectroscopy and electrical conductivity measurements ...
Meiling Hong +7 more
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Superionic effect and anisotropic texture in Earth’s inner core driven by geomagnetic field
Nature Communications, 2023 Earth’s inner core is heterogeneous and anisotropic. A new study based on computational simulation reveals the presence of ionic hydrogen flux in iron crystals, driven by the dipole geomagnetic field, which promotes the formation of observed inner core ...
Shichuan Sun +7 more
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High-pressure, high-temperature molecular doping of nanodiamond [PDF]
Science Advances, 2019 We create defects for quantum technologies by using high temperatures and pressures to convert molecularly doped carbon to diamond.
M. J. Crane +7 more
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Changes in the Nutrient Values of Sardines and Pink Salmon after High-pressure-high-temperature Processing [PDF]
, 2021 To promote daily fish and shellfish consumption in schools, hospitals, and care facilities, as well as ordinary households, we analyzed the nutritional components of sardines and pink salmon processed by the high-pressure-high-temperature (HPHT) method.
Shimada, Saori +7 more
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The Phase Transition and Dehydration in Epsomite under High Temperature and High Pressure
Crystals, 2020 The phase stability of epsomite under a high temperature and high pressure were explored through Raman spectroscopy and electrical conductivity measurements in a diamond anvil cell up to ~623 K and ~12.8 GPa.
Linfei Yang +5 more
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Frontiers in Earth Science, 2021 The electrical conductivities of hydrous olivine (Ol) aggregates and Ol–H2O, Ol–NaCl–H2O (salinity: 1–21 wt%; fluid fraction: 5.1–20.7 vol%), Ol–KCl–H2O (salinity: 5 wt%; fluid fraction: 10.9–14.0 vol%) and Ol–CaCl2–H2O systems (salinity: 5 wt%; fluid ...
Wenqing Sun +13 more
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High pressure–high temperature phase diagram of ammonia [PDF]
The Journal of Chemical Physics, 2008 The high pressure (P)–high temperature (T) phase diagram of solid ammonia has been investigated using diamond anvil cell and resistive heating techniques. The III-IV transition line has been determined up to 20GPa and 500K both on compression and decompression paths.
Ninet, S., Datchi, F.
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Tellurium Hydrides at High Pressures: High-Temperature Superconductors [PDF]
Physical Review Letters, 2016 Observation of high-temperature superconductivity in sulfur hydrides at megabar pressures has generated an irresistible wave on searching for new superconductors in other compressed hydrogen-rich compounds. An immediate effort is towards exploration of the relevant candidate of tellurium hydrides, where tellurium is isoelectronic to sulfur but it has a
Zhong, Xin +8 more
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