Journal overview. 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 …Web
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As we show in this Review, high pressure can greatly enrich the chemistry of matter enabling the formation of unusual chemical species and promoting many new …Web
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The insets show the pressure evolution of the exciton band corresponding to the α-FAPbI 3 direct bandgap. (c) Peak position of the δ-FAPbI 3 PL spectra during compression (full ... High-pressure research can be used to search for new materials since the high-pressure structural configuration can be used as a model for tailoring ambient ...Web
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In this paper, the high-pressure evolution of FeOOH was re-evaluated up to ~75 GPa using a combination of synchrotron-based X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and optical absorption spectroscopy. Based on these measurements, we report three principal findings: (1) pressure-induced changes …Web
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Several SPD processing techniques have been proposed but it is noted that equal-channel angular pressing (ECAP) [13], accumulative roll-bonding (ARB) [14] and …Web
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Box 3 Fundamental concepts for chemistry under pressure. The key factors that lead to the formation of atypical compounds and/or new chemical properties under high pressure can be summarized as ...Web
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a Mineralogical evolution during high-pressure serpentinization at 400 °C and 1 GPa. b Evolution of the f O 2 and the H 2 and CH 4 concentrations in the fluid as a function of the reaction ...Web
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Abstract. Recent conflicting reports on the high-pressure structural evolution of iron oxide-hydroxide (FeOOH) offer starkly contrasting scenarios for the hydrogen and oxygen cycles in Earth's interior. Here we explore the crystal structures of FeOOH using an advanced search algorithm combined with first-principles calculations.Web
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High-pressure evolution of the experimental unit-cell volume of gasparite-(Ce). The red line represents the fitted BM2-EoS, while the dotted red line line is an extension of the BM2-EoS at pressures exceeding the change in compressional behavior (see text for further details)Web
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The evolution of the Köyceğiz peridotites could have commenced in an intraoceanic subduction zone, where radiogenic Os-enriched lithosphere occurred beneath a section of hitherto depleted peridotites (cf., Bradon et al., 1996). ... Xiong et al., 2022b); ii) Cr-spinel with abundant native Fe spherules which suggest original high-pressure Ca ...Web
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Abstract Study of the plastic flow, strain-induced phase transformations (PTs), and microstructure evolution under high pressure is important for producing new …Web
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Results reveal that density evolution of snow to ice under high-pressure sintering can be achieved in a wide temperature range within a duration as short as 5 min. The compressive strength of snow-sintered ice was ~1.2–2.2 times as large as that of water-frozen ice reported by previous work. The orthogonal experiment showed that pressure …Web
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As the prototype of MB6 (M = alkaline-earth and rare-earth metals) compounds, YB6 possesses the highest superconducting critical temperature in this family at the ambient pressure. Here, we performed a first principle exploration on the chemical bonding states and the corresponding electronic properties of YB6 at high pressure. …Web
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The elastic behaviour and the high-pressure structural evolution of a natural topaz, Al2.00Si1.05O4.00(OH0.26F1.75), have been investigated by means of in situ single-crystal X-ray diffraction up ...Web
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High Pressure Processing Technology and Equipment Evolution: A Review Wael M. Elamin* 1,2, Johari B. Endan 1, Yus A. Yosuf 1, Rosnah Shamsudin 1 and Anvarjon Ahmedov 1Web
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At present, the generally recognized mechanisms of abnormal high pressure include mainly under compaction, tectonics, buoyancy, fluid migration, osmosis, hydrothermal pressurization, mineral conversion, and hydrocarbon generation (Liu et al., 2018a; Sibson, 2000).The existing methods for determining the mechanism of abnormal …Web
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Here, we report on the measurement of room-temperature refractive index of MgO up to ∼140 GPa. The refractive index of MgO at 600 nm decreases by ∼2.4% from ∼1.737 at 1 atm to ∼1.696 (±0. ...Web
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The evolution of a typical pressure curve was analysed in our previous study (Jiang et al., 2019), in which the evolution was divided into three stages. Pressure signals rise rapidly and reach the first peak under the effect of the shock wave in the first stage, marked by the red circle in Fig. 4 .Web
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The compression behaviors are characteristic of continuous topology evolution. The pressure-induced shearing reduces the symmetry of ZnOHF from the initial space group Pnma to its subgroup Pna2 1 in the pressure range of 14.2–19.8 GPa. The hints of a further phase transformation to the CdOHF-type structure at 30.7 GPa are also …Web
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The characteristics of instability evolution in a turbocharger centrifugal compressor were investigated via high-response static-pressure measurements in this study. The time and frequency domain behaviors of unsteady pressure signals were analyzed for various rotational speeds, and the characteristics of the typical instability …Web
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A high pressure and temperature zone (15p 0, 5T 0) is set at the center of the left solid wall with a size of (2, 3 mm) for ignition. ... The discussion that pressure evolution at the interface does not change with the detonation intensity and tube diameter will have certain guidance for future numerical simulations.Web
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The relatively small color change of GaP below 22.0 GPa is compatible with the pressure variation of E g of −14.9 meV GPa −1 extracted from the early high-pressure transmission experiments 39.Web
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The evolution of multicomponent systems at high pressures: VI. The thermodynamic stability of the hydrogen–carbon system: The genesis of hydrocarbons …Web
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The situation in the H–C–N–O quaternary system reflects this. A vast number of publications exist on the high-pressure evolution of the individual constituents H, C, N, and O (16–19).Binary systems have also been looked at in great detail (20–24).The ternary systems are much less investigated: While H–C–O, H–N–O, and C–N–O phase …Web
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A relationship between evolution of the long-range magnetic order, crystal structure, and lattice distortions in LaMn O 3 was studied by a combination of neutron diffraction and Raman spectroscopy at high pressures up to 39 and 50 GPa, respectively, covering the temperature range 5 to 290 K. The Raman spectra reveal a gradual …Web
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High Pressure Phase-Transformation Induced Texture Evolution and Strengthening in Zirconium Metal: Experiment and Modeling Xiaohui Yu, Ruifeng Zhang, …Web
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High Pressure Processing Equipment History of High Pressure Equipment in Food Processing The first high pressure food processing equipment was used to pressurize milk by Hite in 1899. As illustrated in figure 1, the equipment consists of a product container made of a collapsible tin tube where the milk was packed.Web
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This paper is organized as follows: We first describe modern high-pressure experimental methods in Sec. II; then, we discuss the thermodynamic constraints on …Web
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The accurate understanding of the origin of overpressure is the basis of formation pressure research and the core work of determining the distribution of formation pore pressure in drilling design. The deep …Web
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High pressure has been recognized as an important tool in molecule and materials research, and thus, it is expected to be used to understand the evolution of …Web
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