Method for enhancing the anti-co, co2, air poisoning and anti-powdering performance of zrco alloy

Abstract

The invention discloses a method for enhancing the performance of ZrCo alloy to resist CO, CO2 and air poison and the anti-pulverization performance of the alloy, which comprises the steps of S1: preparing ZrCo alloy powder; S2: sieving the ZrCo alloy powder; S3: mixing ethyl alcohol with deionized water, and stirring to obtain a mixed solution; S4: adding concentrated hydrochloric acid to adjust the pH value and obtain a first mixture; S5: mixing tetraethoxysilane with ethyl alcohol to obtain a second mixture; S6: mixing the first mixture with the second mixture to obtain a third mixture; S7: standing, and heating the third mixture to volatilize the ethyl alcohol; S8: adding hydrophilic gaseous phase silicon dioxide to the third mixture so as to obtain a silicon dioxide sol; S9: adding the ZrCo alloy powder to the silicon dioxide sol so as to obtain paste; S10: heating and drying the paste. According to the method disclosed by the invention, the problem that the ZrCo alloy is poor in anti-pulverization capability and poor in anti-poison capability is solved, the use stability of the ZrCo alloy is enhanced, and the service life of the ZrCo alloy is prolonged.

Description

technical field [0001] The invention relates to a method for modifying the surface of a ZrCo alloy, in particular to a method for enhancing the resistance of a ZrCo alloy to CO and CO 2 , Air poisoning and anti-powdering performance. Background technique [0002] Hydrogen storage materials are widely used in the storage, supply and purification of hydrogen. Among them, ZrCo alloy is often used as the main material for tritium storage due to its fast hydrogen absorption speed and low tritium equilibrium dissociation pressure. Generally, the hydrogen absorption equilibrium pressure of ZrCo alloy at room temperature is 10 -5 mbar, and the temperature is 345°C when the equilibrium dissociation pressure is 1 bar. Therefore, ZrCo alloy is widely used as the main material for tritium storage and tritium absorbing material in tritium waste treatment. [0003] However, in practical applications, ZrCo alloys also have some problems that need to be solved. For example, when the all...

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Problems solved by technology

[0007] The object of the present invention is to provide a kind of enhanced ZrCo alloy anti-CO, CO 2 , air poisoning and anti-powdering performance methods, mainly to solve the existing ZrCo alloys that are resistant to CO, CO 2 , air poisoning and poor anti-powdering ability

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