Results 131 to 140 of about 2,542 (183)
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The membrane diamond anvil cell
High Pressure Research, 1990A new design for a diamond anvil cell is described. Its main characteristic is that the force on the piston is generated by pressurized helium.
Paul Loubeyre, R Letoullec
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A multipurpose miniature diamond anvil cell
Review of Scientific Instruments, 1990A new multipurpose miniature diamond anvil high-pressure cell (DAC) has been constructed. The circular DAC has an overall 22-mm diam. and 15-mm height and is comprised of a gasket, opposing diamond anvils each mounted on backing plates, and force rings (platens). The pressure is generated by six Allen-type screws.
Taylor R D, Pasternak M P
exaly +2 more sources
Diamond anvil cell, 50th birthday
High Pressure Research, 2009The year 2008 marked the fiftieth birthday of the diamond anvil cell. Its birth took place when Alvin Van Valkenburg, while working with his colleagues, Charles E. Weir, Ellis R. Lippincott, and Elmer N. Bunting, first realized that he could look right through one of the diamond anvils and see a sample while it was at high pressure.
exaly +2 more sources
Miniature cryogenic diamond anvil cell
High Pressure Research, 1990Abstract The miniature cryogenic diamond anvil described previously [D.J. Dunstan and W. Scherrer, Rev. Sci. Instrum. 59, 627 (1988)] has been modified to facilitate its use, and has been taken to 26GPa. The modifications are described here, together with some details of operation.
D J Dunstan
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Diamond anvil cell with double coaxial chambers
Review of Scientific Instruments, 2021In general, pressure calibration in diamond anvil cells (DACs) has been achieved by mixing pressure calibration materials (PCMs) with the sample inside the pressure chamber. However, the chemical reactions between the sample and PCMs are sometimes unavoidable at extreme conditions, such as high pressure and high temperature.
Dawei Jiang +6 more
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Chinese Physics B, 2021
Studies show that the sample thickness is an important parameter in investigating the thermal transport properties of materials under high-temperature and high-pressure (HTHP) in the diamond anvil cell (DAC) device. However, it is an enormous challenge to measure the sample thickness accurately in the DAC under severe working conditions.
Caihong Jia +4 more
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Studies show that the sample thickness is an important parameter in investigating the thermal transport properties of materials under high-temperature and high-pressure (HTHP) in the diamond anvil cell (DAC) device. However, it is an enormous challenge to measure the sample thickness accurately in the DAC under severe working conditions.
Caihong Jia +4 more
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An improved hydrothermal diamond anvil cell
Review of Scientific Instruments, 2016A new type of HDAC-V hydrothermal diamond anvil cell (HDAC-VT) has been designed to meet the demands of X-ray research including X-Ray Fluorescence, X-ray Absorption Spectroscopy, and small angle X-ray scattering. The earlier version of HDAC-V that offered a large rectangular solid angle used two posts and two driver screws on both sides of a ...
Jiankang, Li +5 more
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Viscosity measurements in the diamond anvil pressure cell
Review of Scientific Instruments, 1978The viscosity of liquids can be measured in the diamond-anvil pressure cell utilizing a falling-solid sphere method and the ruby technique for pressure measurement. The pressure dependence of the viscosity of a 4:1 mixture (by volume) of methanol–ethanol was determined to 70 kilobars.
G J, Piermarini, R A, Forman, S, Block
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Review of Scientific Instruments, 1987
Techniques are presented for NMR measurements at high pressure in a diamond anvil cell. Two schemes of coupling radio frequency magnetic fields to the spins inside a metal gasket are described. As a demonstration of the techniques, the relaxation times T1 and T2 of methanol:ethanol solution have been measured to 52 kbar at room temperature.
Sam-Hyeon Lee +3 more
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Techniques are presented for NMR measurements at high pressure in a diamond anvil cell. Two schemes of coupling radio frequency magnetic fields to the spins inside a metal gasket are described. As a demonstration of the techniques, the relaxation times T1 and T2 of methanol:ethanol solution have been measured to 52 kbar at room temperature.
Sam-Hyeon Lee +3 more
openaire +1 more source
Thickness measurement of sample in diamond anvil cell
Review of Scientific Instruments, 2007We report on an original method that measures sample thickness in a diamond anvil cell under high pressures. The method is based on two hypotheses: completely plastic deformation on the gasket and completely elastic deformation of the diamonds. This method can further eliminate the effect of diamond deformation on the thickness measurement of a sample,
Ming, Li +9 more
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