High-pressure packaging container and high-pressure in-situ gas compression packaging and pressure monitoring system

A gas compression and packaging system technology, applied in pressure vessels, equipment into pressure vessels, container filling methods, etc., can solve problems such as increased experimental difficulty, damage to diamond anvils, and packaging failures, and achieves high adaptability and reliability. Flexibility, increased success rate, compact effect

Inactive Publication Date: 2017-05-31
JILIN UNIV
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  • Claims
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Problems solved by technology

However, due to the need for high-pressure compression of the gas in this packaging method, the packaging container used is fully airtight made of steel, which cannot monitor the state of the sample or the pressure transmission medium in the sample chamber, often resulting in packaging failure and damage to the expensive diamond press. The situation of the anvil increases the difficulty of the experiment, which is not conducive to the further expansion of the high-pressure experimental research. Therefore, it is necessary to design a new high-pressure packaging container to realize the real-time monitoring of the diamond on the anvil sample cavity during the packaging process, so as to ensure the stability of the experimental process. Stable and controllable, improving the success rate of high-pressure in-situ experiments
[0005] In addition, in order to ensure the smooth implementation of the experimental research under such high-pressure extreme conditions, it is necessary to be able to accurately calibrate the pressure of the material in the sample chamber. At this stage, the commonly used pressure calibration method is the ruby ​​fluorescence pressure calibration method. However, due to the portable The spectrometer does not have the ability to monitor such a small area. The usual solution is to use a laboratory-level large-scale microscopic confocal spectral testing system to find the pressed ruby ​​through the large microscope attached to the system and perform spectral measurements on it. for pressure calibration
However, the optical interface of this large-scale equipment is usually fixed at present, and cannot be flexibly modified to match the gaseous sample packaging system

Method used

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  • High-pressure packaging container and high-pressure in-situ gas compression packaging and pressure monitoring system

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Embodiment 1

[0056] In this embodiment, using the high-pressure in-situ gas compression packaging and pressure monitoring system of the present invention, argon gas is filled into the sample cavity of the diamond counter-anvil press as a pressure transmission medium, and the pressure in the sample cavity is monitored with a ruby ​​pressure calibration system , the specific operation process is as follows:

[0057] In this example, the diameter of the anvil surface of the diamond counter-anvil press device used is 500 μm, a T301 stainless steel foil with a thickness of 0.25 mm is pre-pressed to 40 μm, and a tungsten carbide needle is used to punch a diameter of 160 μm in the center of the indentation. The hole is used as the sample cavity, and the experimental sample is loaded into the sample cavity, and at the same time, ruby ​​microspheres with a diameter of 10 μm are loaded to calibrate the pressure in the sample cavity; the diamond counter anvil device is sealed, and the diamond counter ...

Embodiment 2

[0067] In this embodiment, using the high-pressure in-situ gas compression packaging and pressure monitoring system of the present invention, hydrogen sulfide is filled into the sample cavity of the diamond counter-anvil press as an experimental sample, and the pressure in the sample cavity is monitored with a ruby ​​pressure calibration system. The specific operation process is as follows:

[0068] In this embodiment, the diameter of the anvil surface of the diamond counter anvil press device used is 300 μm. Pre-press a square metal rhenium foil of 5mm×5mm, use an EDM to form a hole with a diameter of 100 μm in the center of the indentation as the sample cavity, and fill it with ruby ​​microspheres with a diameter of 5 μm to calibrate the sample cavity Seal the diamond counter-anvil device, pack the diamond counter-anvil into a high-pressure packaging container, and seal the high-pressure packaging container. Switch the imaging / measurement switching device to the "cut-in" st...

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Abstract

The invention discloses a high-pressure packaging container, and a high-pressure in-situ gas compression packaging and pressure monitoring system. The system comprises the high-pressure packaging container, a high-pressure in-situ gas compression packaging system and a high-pressure in-situ gas monitoring system, wherein the high-pressure in-situ gas compression packaging system can package both a plurality of inert gas pressure transmission media and a plurality gaseous-state samples; the high-pressure in-situ gas monitoring system can precisely calibrate ultrahigh pressure; the high-pressure packaging container is provided with an optics observation window and a high-pressure gas inlet, so that high pressure generated during the packaging process of the gaseous-state samples or the inert gas pressure transmission media can be monitored, the situation that pressure in the high-pressure packaging container is stable and controllable during the packaging process is ensured, and the problems that the packaging of the gaseous-state samples or the inert gas pressure transmission media fails caused by uncontrollable pressure in the high-pressure packaging container and a diamond anvil cell press is damaged are avoided to further increase the success rate of a high-pressure in-situ experiment.

Description

technical field [0001] The invention relates to the field of high-pressure science and technology, in particular to a high-pressure packaging container, high-pressure in-situ gas compression packaging and a pressure monitoring system. Background technique [0002] High-pressure science is a subject that studies the structure, state, and property changes of matter under pressure. It is an interdisciplinary subject that covers a wide range. [0003] At present, the main equipment for obtaining GPa-level ultra-high pressure experimentally is the Diamond Aanvil Cell-DAC, which uses the micro-plane at the top of the conical diamond to squeeze the sample to generate high pressure. The new changes and laws of its structure and physical and chemical properties provide important scientific basis and new perspectives for finding new substances and discovering new properties; in order to ensure that the pressure acting on the sample is isotropic and uniform ( Hydrostatic conditions), ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/00F17C5/00F17C13/00F17C13/02F17C13/04
CPCF17C1/00F17C5/00F17C13/002F17C13/02F17C13/04F17C2203/0602
Inventor 刘然刘波刘冰冰
Owner JILIN UNIV
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