A kind of shock wave synthesis method of mo2c powder

Abstract

The invention discloses a shock wave synthesis method of Mo2C powder. The method is characterized by successively comprising the following steps: (1) preparing materials by preparing sufficient anhydrous sodium molybdate and boron carbide which are used as the raw materials, and preparing a sample box; (2) weighing sodium molybdate and boron carbide according to a mole ratio of (2 to 1)-(3 to 1), uniformly grinding and mixing, then putting the materials in a sheet pressing device, pressing the materials into sheet-shaped materials adapted to the sample box, and then putting the sheet-shaped materials in the sample box; (3) fixing the sample box filled with the sheet-shaped materials in a shock wave loading device for shock compression, cooling and then taking the sheet-shaped materials subjected to shock compression in the sample box; (4) grinding the sheet-shaped materials subjected to shock compression into fine powder then washing the fine powder by using hot distilled water, then carrying out centrifugal separation of the washed fine powder; and (5) drying the fine powder obtained after centrifugal separation to obtain Mo2C powder. According to the shock wave synthesis method of the Mo2C powder; the raw material sources are rich; the method is simple, is easy to implement, creates a novel method of synthesizing Mo2C, and has a good industrial application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of transition metal carbide powder materials, specifically a Mo 2 Shock wave synthesis method of C powder. Background technique [0002] Mo 2 C is a kind of mesenchymal compound with metallic properties produced by carbon atoms entering the transition metal molybdenum lattice. It combines the characteristics of covalent solids, ionic crystals and transition metals. It has high melting point, high hardness, and thermal conductivity. Good electrical conductivity and good corrosion resistance. At present, it has been widely used in various fields such as high temperature resistance, wear resistance and chemical corrosion resistance materials. It is often added to iron and steel materials as a second phase reinforcing phase to improve its wear resistance, and added to superhard materials to improve its toughness, and can also be used alone as a wear-resistant coating. In addition, Mo 2 C also has an el...

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Problems solved by technology

These methods usually need to be carried out at very high temperature, the synthesis conditions are relatively harsh, such as usually need to be carried out in vacuum, reducing or inert atmosphere, and the obtained particle surface area carbon is always difficult to avoid

Moreover, these synthetic processes are complicated, the reaction cycle is long, and the cost is expensive, which brings a lot of inconvenience for practical application.

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