Diamond anvil cell zirconium-base amorphous alloy seal pad and preparation method thereof

A zirconium-based amorphous alloy, diamond topping technology, applied in the application of ultra-high pressure process and other directions, can solve the problems of difficult to find the position of the hole, time-consuming, limit the application of high-pressure experiments, etc., to achieve excellent mechanical properties, operation Simple, high-intensity effect

Inactive Publication Date: 2012-07-04
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional T301 gasket needs to be pre-pressed before drilling, which is time-consuming and difficult to find the position of the hole, and the influence of the background on the experimental results limits the application of high-pressure experiments in scientific research

Method used

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  • Diamond anvil cell zirconium-base amorphous alloy seal pad and preparation method thereof
  • Diamond anvil cell zirconium-base amorphous alloy seal pad and preparation method thereof
  • Diamond anvil cell zirconium-base amorphous alloy seal pad and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Get zirconium 50g, aluminum 2.69g, nickel 2.93g, copper 19g, the purity of above-mentioned metal raw material is 99.9%. Put the above-mentioned raw materials into a non-consumable electric arc furnace, and under the protection of argon, heat to 2000°C to melt into an alloy ingot, and repeat the melting twice to obtain an alloy ingot with uniform composition. A copper wire with a diameter of 50 μm is used as the core of the amorphous alloy to be suction-cast, fixed in the middle of the copper mold, and the surface of the copper wire is polished with high-grade sandpaper. Then put the above alloy ingot into a quartz tube, heat and remelt it through a high-frequency electromagnetic induction furnace, and inject it into the above copper mold equipped with a copper wire core. After cooling under the protection of argon, separate the copper mold and take out the copper wire core. After cutting, an amorphous alloy sealing gasket with a diameter of 50 μm and a thickness of 50 μ...

Embodiment 2

[0026] Get zirconium 60g, aluminum 3.34g, nickel 9.9g, copper 8.64g, the purity of above-mentioned metal raw material is 99.9%. Put the above-mentioned raw materials into a non-consumable electric arc furnace, and under the protection of argon, heat to 2000°C to melt into an alloy ingot, and repeat the melting 4 times to obtain an alloy ingot with uniform composition. A copper wire with a diameter of 120 μm is used as the core of the amorphous alloy to be suction-cast, fixed in the middle of the copper mold, and the surface of the copper wire is polished with high-grade sandpaper. Then put the above alloy ingot into a quartz tube, heat and remelt it through a high-frequency electromagnetic induction furnace, and inject it into the above copper mold equipped with a copper wire core. After cooling under the protection of argon, separate the copper mold and take out the copper wire core. After cutting, an amorphous alloy gasket with a diameter of 120 μm and a thickness of 50 μm i...

Embodiment 3

[0028] Get 66g of zirconium, 2.78g of aluminum, 12.21g of nickel, and 4.88g of copper. The purity of the above-mentioned metal raw materials is 99.9%. Put the above raw materials into a non-consumable electric arc furnace, under the protection of argon, heat to 2000°C to melt into an alloy ingot, and repeat the melting 7 times to obtain an alloy ingot with uniform composition. A copper wire with a diameter of 200 μm is used as the core of the amorphous alloy to be suction-cast, fixed in the middle of the copper mold, and the surface of the copper wire is polished with high-grade sandpaper. Then put the above alloy ingot into a quartz tube, heat and remelt it through a high-frequency electromagnetic induction furnace, and inject it into the above copper mold equipped with a copper wire core. After cooling under the protection of argon, separate the copper mold and take out the copper wire core. After cutting, an amorphous alloy gasket with a diameter of 200 μm and a thickness o...

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Abstract

The invention relates to a diamond anvil cell zirconium-base amorphous alloy seal pad which comprises the following chemical components in atomic percents (at.%): 55-66% of Zr, 8-11% of Al, 5-19% of Ni and 7-30% of Cu. The preparation method comprises the following steps: putting the raw materials into a non-consumable arc-melting furnace, heating to 2000 DEG C to smelt to form an alloy ingot, repeatedly smelting 2-7 times, putting the alloy ingot into a silica tube, heating for resmelting in a high-frequency electromagnetic induction furnace, injecting into a copper mold filled with a copper wire core, cooling in an argon atmosphere, separating the copper mold, and taking out the copper wire core to obtain the amorphous alloy seal pad. The amorphous seal pad is filled into a diamond anvil cell to align the sample cavity with the center of the anvil table, and then the sample, a pressure transfer medium and a scalar pressure medium are put into the sample cavity to carry out pressurization and depressurization experiments. The invention is simple to operate, does not need to make a hole, eliminates the influence of the back bottom on the experimental result, and enhances the reliability and precision of the experimental result.

Description

technical field [0001] The invention relates to an amorphous alloy gasket and a preparation method thereof, in particular to a gasket used for a diamond counter anvil and a preparation method thereof. Background technique [0002] In recent years, with the great development and application of high pressure in physics, chemistry, material science and other disciplines, the subject of high pressure has attracted more and more attention. The Diamond Counter Anvil (DAC) device is currently the highest pressure device capable of generating static high pressure, up to 550GPa. Not only that, diamond has excellent properties of being transparent to X-rays and light of most wavelengths, which makes DAC possible to realize researches on X-ray diffraction, fluorescence, Raman, infrared absorption, etc. under high pressure. The gasket is an important accessory in the DAC, which is used to seal the sample. T301 cemented carbide steel has been used as the gasket in the traditional DAC. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/10C22C1/02B01J3/06
Inventor 李工刘日平王永永张涛
Owner YANSHAN UNIV
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