Abstract: Provided is a method for calibrating a deformation pressure of a large-volume press. The method for calibrating the deformation pressure of the large-volume press includes: depositing a conductive layer onto a surface of a bevel plug to obtain a conductive bevel plug; assembling the conductive bevel plug, a molybdenum pillar, a magnesium oxide tube, a magnesium oxide sample chamber, a magnesium oxide octahedron and a calibration standard material, placing a resulting system in the large-volume press, and subjecting the resulting system to a large-volume press pressure correction experiment.

Abstract: Provided is a method for calibrating a deformation pressure of a large-volume press. The method for calibrating the deformation pressure of the large-volume press includes: depositing a conductive layer onto a surface of a bevel plug to obtain a conductive bevel plug; assembling the conductive bevel plug, a molybdenum pillar, a magnesium oxide tube, a magnesium oxide sample chamber, a magnesium oxide octahedron and a calibration standard material, placing a resulting system in the large-volume press, and subjecting the resulting system to a large-volume press pressure correction experiment.

Abstract: A controllable rapid pressure loading technology for a large volume press is provided. A regular octahedra, plugs, diamond pistons, and a standard are included. The regular octahedra is provided with a cavity with openings at two ends of the cavity. The standard is placed in the cavity. The openings at two ends of the cavity are respectively blocked by the conductive plugs. The diamond piston is arranged between the standard and the plug. The diamond pistons arranged between the standard and the plug has high hardness and has the pressure transmission efficiency superior to that of a common ceramic plug, improving compression efficiency in sample cavity. A loading method of pre-charging a pressure to a pressure loading device first and then rapidly releasing to a pressure loading mold is used to match an improved pressure transmission component, which shortens the pressure loading time of the sample cavity.

Abstract: A gas diaphragm driven rapid supercharging device based on a diamond anvil cell is provided which includes a gas diaphragm, a diamond anvil cell press, a hard steel shell and a gas release component. The gas diaphragm and the diamond anvil cell press are positioned inside the hard steel shell, the gas diaphragm is positioned below the diamond anvil cell press, a first opening is formed in a top of the hard steel shell, and a second opening is formed in a bottom of the hard steel shell. The gas release component passes through the second opening of the hard steel shell to be connected with the gas diaphragm through a gas path, and the gas release component is configured for releasing gas at a first inflation speed in a standard pressure experiment, and inflating the gas diaphragm at different driving pressures to obtain a pressure calibration curve.