Results 41 to 50 of about 2,888,981 (203)

Thermodynamic Properties of MgAl2O4 Spinel at High Temperatures and High Pressures

open access: yesCrystals, 2023
Thermodynamic properties of MgAl2O4 spinel are significant in understanding the phase relations of the Earth’s crust and upper mantle, but available values from experimental measurements are limited at ambient pressure conditions to date.
Wuxueying Qiu   +3 more
doaj   +1 more source

Temperature- and magnetic-field-dependent resistivity of MgB2 sintered at high temperature and high pressure condition

open access: yes, 2001
We report the temperature- and magnetic-field-dependent resistivity of MgB2 sintered at high temperature and high pressure condition. The superconducting transition width for the resistivity measurement was about 0.4 K, and the low-field magnetization ...
Bud'ko   +8 more
core   +1 more source

Hydrogenation of Graphene by Reaction at High Pressure and High Temperature [PDF]

open access: yesACS Nano, 2015
The chemical reaction between hydrogen and purely sp(2)-bonded graphene to form graphene's purely sp(3)-bonded analogue, graphane, potentially allows the synthesis of a much wider variety of novel two-dimensional materials by opening a pathway to the application of conventional chemistry methods in graphene.
Smith, D   +10 more
openaire   +5 more sources

Effects of Al Content on the Corrosion Behaviors of Low Cr Bearing Steels in NaCl Solutions

open access: yesInternational Journal of Electrochemical Science, 2021
The effects of Al content on the corrosion behaviors of aluminum-bearing steels were studied in NaCl solutions. Electrochemical measurements and Raman and scanning electron microscopy (SEM) surface analyses revealed that the aluminum-bearing steel formed
Shuai Wang   +3 more
doaj   +1 more source

Pressure effects on the superconducting thin film Ba$_{1-x}$K$_{x}$Fe$_{2}$As$_{2}$

open access: yes, 2012
We report electrical resistivity measurements on a high-quality Ba$_{1-x}$K$_{x}$Fe$_{2}$As$_{2}$ thin film ($x=0.4$) under pressure. The superconducting transition temperature (=39.95 K) of the optimally-doped thin film shows a dome shape with pressure,
Kang, Won Nam   +3 more
core   +1 more source

Physical Mechanisms of “Shock Cooling” at the Molecular Fluid/Window Interface under Shock Loading

open access: yesGaoya wuli xuebao
The physical mechanism of “shock cooling” at the molecular fluid/window interface has troubled the shock wave physics community for many years and remains unsolved.
Kewei LI   +4 more
doaj   +1 more source

Thermodynamics of the Mg-B system: Implications for the deposition of MgB2 thin films

open access: yes, 2001
We have studied thermodynamics of the Mg-B system with the modeling technique CALPHAD using a computerized optimization procedure. Temperature-composition, pressure-composition, and pressure-temperature phase diagrams under different conditions are ...
Li, Qi   +3 more
core   +1 more source

Comparison between the lattice dynamics and molecular dynamics methods: Calculation results for MgSiO3 perovskite [PDF]

open access: yes, 2004
The lattice dynamics (LD) and molecular dynamics (MD) methods have been used to calculate the structure, bulk modulus, and volume thermal expansivity of MgSiO3 perovskite, in order to investigate the reliability of the two simulation techniques over a ...
Matsui, M, Patel, A, Price, GD
core   +1 more source

Electrochemical Corrosion Behavior of TC11 Alloy in Sulfate Solution at High Temperature and High Pressure

open access: yesInternational Journal of Electrochemical Science, 2017
TC11 alloy is a potential alloy for use in high temperature aggressive water environments. The electrochemistry and corrosion behavior of TC11 alloy is investigated in sodium sulfate solution at high temperature and high pressure using various in situ ...
Lei Zha   +4 more
doaj   +1 more source

High-pressure/high-temperature phase diagram of zinc

open access: yesJournal of Physics: Condensed Matter, 2018
26 pages, 7 ...
Errandonea, Daniel   +8 more
openaire   +7 more sources

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