Annular seal space for neutron static high-pressure experiments

Abstract

The invention provides an annular seal space for neutron static high-pressure experiments. An annular seal space cover of the annular seal space comprises an annular seal space roof, a bellows and anupper flange port. The annular seal space roof and the upper flange port are respectively connected to upper and lower ends of the bellows. The upper flange port is an open end of the annular seal space cover. The annular seal space roof is a closed end of the annular seal space cover. The annular seal space bottom comprises a lower flange port, a neutron window, an annular seal space location hole and a high-pressure chamber bayonet. The lower flange port is placed at an upper opening of the annular seal space bottom; the neutron window is positioned below the lower flange port; the annular seal space location hole is positioned at the center of the bottom of the annular seal space bottom; and the high-pressure chamber bayonet is positioned at the bottom of the annular seal space bottom.

Description

technical field [0001] The invention relates to the technical field of neutron static high-pressure diffraction experiments, in particular to a sealed chamber for neutron static high-pressure experiments. Background technique [0002] Under high pressure, the internal atomic distance and atomic shell state of the substance will change, and at the same time, the charges between the atoms will be redistributed, and finally the structural phase change and physical property change will occur, forming new substances or new physical phenomena, so high pressure Science is seen as the field of study most likely to make major scientific breakthroughs in the future. In high-pressure experiments, general samples are friendly to the environment and personnel, but for high-pressure samples that are radioactive, or produce toxic aerosols and volatilize into toxic gases, the leakage of these toxic and harmful substances is bound to cause serious harm to the environment and experimenters ....

AI Technical Summary

Problems solved by technology

In high-pressure experiments, general samples are friendly to the environment and personnel, but for high-pressure samples that are radioactive, or produce toxic aerosols and volatilize into toxic gases, the leakage of these toxic and harmful substances is bound to cause serious harm to the environment and experimenters

Although under pressure loading, the combined sealing of the gasket and the anvil can seal the sample, if the gasket or the anvil breaks during the experiment, the toxic and harmful substances will leak out, and this sealing method has been used throughout the unexperimental period. Under pressure, the high-pressure chamber cannot play a sealing role during the transfer process; in addition, because the press will compress the high-pressure chamber during the high-pressure experiment in order to apply the expected pressure to the sample, for a general sealed chamber, the press may During the moving process of the pressure head, the sealing chamber will be crushed, so it is necessary to design a sealing chamber that will not be crushed during the high-pressure compression process to ensure that harmful substances are always in a sealed state, and there is no such seal chamber report

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