Preparation process of a crack-free titanium hydride electrode source sheet
A preparation process and technology of titanium hydride, applied in the direction of transition element hydride, etc., can solve the problems of electrode source chip sputtering and shortening service life, and achieve the effects of improving uniformity, prolonging life and improving discharge stability.
Inactive Publication Date: 2017-01-04
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology
[0006] The purpose of the present invention is to provide a preparation process of a crack-free titanium hydride electrode source sheet, which solves the problem that the titanium hydride electrode source sheet produced by the current process is prone to large-area sputtering on the surface of the electrode source sheet and shortens the service life under strong pulse discharge The problem
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[0039] The preparation process of a non-crack titanium hydrogenation electrode source sheet of the present invention adopts Goodfellow TI007930 pure titanium rod as raw material, and produces according to the following process:
[0040] (a1) Process pure titanium into pure titanium source sheet, with a diameter of 6.05mm and a thickness of 0.58mm;
[0041] (a2) Perform mechanical grinding and polishing with Al 2 o 3 Grind the powder as grinding powder in a laboratory small ball mill for 20 minutes;
[0042] (a3) Wash the ground electrode source sheet with deionized water, soak it in 60°C sodium hydroxide solution for 5 minutes, take it out and wash it with deionized water, put it in hydrofluoric acid solution for 5 minutes, take it out and use it again After cleaning with deionized water, put it into alcohol and sonicate for 5 minutes;
[0043] (a4) Take it out and put it in the dryer for drying. Use the METTLER TOLEDO XS205 balance to weigh the electrode source sheet. The me...
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The invention discloses a preparation technology of a crack-free titanium hydride electrode source sheet. The technology includes: (a) using metal titanium as the raw material to manufacture an electrode source sheet workpiece, and conducting pretreatment on the surface; (b) subjecting the pretreated electrode source sheet workpiece obtained in step (a) to high temperature annealing under vacuum; (c) carrying out hydrogen absorption reaction on the annealed electrode source sheet workpiece; and (d) setting a cooling curve to make the hydrogen absorption reaction undergo for certain time, and cooling the workpiece subjected to hydrogen absorption to room temperature, thus obtaining the finished product electrode source sheet. The electrode source sheet produced by the invention has a surface smooth hydrogenated layer free of macrocrack, under the circumstance of strong magnetic pulse discharge, all parts of the hydrogenated layer receive the same external shock, and spray cracking does not happen and form, thus greatly enhancing the discharge stability of the product, and also significantly prolonging the electrode source sheet life.
Description
technical field [0001] The invention relates to the field of metal hydrogen storage materials and the technical field of hydrogen storage electrode preparation, in particular to a preparation process of a crack-free titanium hydride electrode source sheet. Background technique [0002] Metal hydrides (hydrogen includes all three isotopes, namely protium, deuterium and tritium), such as titanium hydride, zirconium hydride and alloy hydrides, are often used in discharge electrodes, such as vacuum arc ion source electrodes. During the discharge process between the electrodes, abundant hydrogen ions and metal ions of various valence states are generated. In order to increase the concentration of hydrogen ions, metal hydrides with a high atomic ratio are usually used, such as the ratio of the number of hydrogen atoms to the number of metal atoms is close to 2:1. [0003] The traditional metal hydride electrode is prepared by the method of bulk hydrogen absorption. In this method...
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IPC IPC(8): C01B6/02
Inventor 王韬龙继东杨振彭宇飞蓝朝晖董攀
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS