Results 81 to 90 of about 2,888,981 (203)

A high pressure, high temperature combustor and turbine-cooling test facility [PDF]

open access: yes
A new test facility is being constructed for developing turbine-cooling and combustor technology for future generation aircraft gas turbine engines. Prototype engine hardware will be investigated in this new facility at gas stream conditions up to 2480 K
Cochran, R. P., Norris, J. W.
core   +1 more source

Electronic Origin of High Temperature Superconductivity in Single-Layer FeSe Superconductor

open access: yes, 2012
The latest discovery of high temperature superconductivity signature in single-layer FeSe is significant because it is possible to break the superconducting critical temperature ceiling (maximum Tc~55 K) that has been stagnant since the discovery of Fe ...
A Tamai   +43 more
core   +1 more source

Phonons and structures of tetracene polymorphs at low temperature and high pressure

open access: yes, 2004
Crystals of tetracene have been studied by means of lattice phonon Raman spectroscopy as a function of temperature and pressure. Two different phases (polymorphs I and II) have been obtained, depending on sample preparation and history.
A. F. Prikhotko   +12 more
core   +1 more source

Viscosity measurements at high temperature and high pressure: A novel technique [PDF]

open access: yes
The extensive numerical modelling of transport phenomena was performed for the melt growth of mercury cadmium telluride. To increase the fidelity of modelling the kinematic viscosity of liquid Hg(1-x)Cd(x)Te was determined at various compositions in the ...
Alexander, J. Iwan D.   +2 more
core   +1 more source

Simultaneous measurement of pressure evolution of crystal structure and superconductivity in FeSe0.92 using designer diamonds

open access: yes, 2012
Simultaneous high pressure x-ray diffraction and electrical resistance measurements have been carried out on a PbO type {\alpha}-FeSe0.92 compound to a pressure of 44 GPa and temperatures down to 4 K using designer diamond anvils at synchrotron source ...
Rao, Sistla Muralidhara   +6 more
core   +1 more source

The Initial Freezing Temperature of Foods at High Pressure

open access: yesCritical Reviews in Food Science and Nutrition, 2008
The Pure water (P,T)-phase diagram is known in the form of empirical equations or tables from nearly a century as a result of Bridgman's work. However, few data are available on other aqueous systems probably due to the difficulty of high-pressure measurements.
Guignon, Bérengère   +5 more
openaire   +3 more sources

Powder diffraction at ALBA synchrotron [PDF]

open access: yes, 2015
This talk is devoted to explain the uses of powder diffraction at MSPD (material science and powder diffraction) of ALBA synchrotron light source. General characteristics of the beamline are: Station 1 - High Pressure Diffraction on powders with diamond ...
García-Aranda, Miguel Ángel
core  

High-temperature superconductivity stabilized by electron-hole interband coupling in collapsed tetragonal phase of KFe2As2 under high pressure

open access: yes, 2015
We report a high-pressure study of simultaneous low-temperature electrical resistivity and Hall effect measurements on high quality single-crystalline KFe2As2 using designer diamond anvil cell techniques with applied pressures up to 33 GPa.
Hyunchae Cynn   +8 more
core   +1 more source

Calculation of self-diffusion coefficients in iron

open access: yesAIP Advances, 2014
On the basis of available P-V-T equation of state of iron, the temperature and pressure dependence of self-diffusion coefficients in iron polymorphs (α, δ, γ and ɛ phases) have been successfully reproduced in terms of the bulk elastic and expansivity ...
Baohua Zhang
doaj   +1 more source

Thermal and Dynamo Evolution of the Lunar Core Based on the Transport Properties of Fe‐S‐P Alloys

open access: yesGeophysical Research Letters
Paleomagnetic analyses have suggested that the lunar magnetic field underwent a significant change from 4.25 to 3.19 Ga, indicating the rapid transition of the lunar dynamo mechanism.
Kuan Zhai, Yuan Yin, Shuangmeng Zhai
doaj   +1 more source

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