Method for preparing Mg nano particles under carbon source atmosphere
A nanoparticle and carbon source gas technology, applied in the field of metal preparation, can solve the problems of easy aggregation and growth of nanoparticles, less than 20% Mg content, and inability to achieve practical application, etc., achieves important application value, inhibits agglomeration, Defective effect
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Embodiment 1
[0014] Example 1 , Synthetic Mg particles with a particle size of 40nm
[0015] (1) Put the Mg block in a plasma arc heating furnace, evacuated, pass in Ar gas with a pressure of 360 torr and acetylene gas with a pressure of 100 torr, and apply 160A DC arc plasma to obtain Mg nanoparticles.
[0016] (2) Stop heating and evacuate. After the system cools down, air is slowly passed into the furnace for passivation, and the sample is taken out after 48 hours of passivation.
Embodiment 2
[0017] Example 2 , Synthetic Mg particles with a particle size of 40nm
[0018] (1) Put the Mg block in a plasma arc heating furnace, evacuated, pass in Ar gas with a pressure of 360 torr and acetylene gas with a pressure of 60 torr, and apply 200A DC arc plasma to obtain Mg nanoparticles.
[0019] (2) Stop heating and evacuate. After the system cools down, air is slowly passed into the furnace for passivation, and the sample is taken out after 48 hours of passivation.
Embodiment 3
[0020] Example 3 , Synthetic Mg particles with a particle size of 40nm
[0021] (1) Place the Mg block in a plasma arc heating furnace, and after vacuuming, pass in Ar gas with a pressure of 360 torr and acetylene gas with a pressure of 60 torr, and apply 120A DC arc plasma to obtain Mg nanoparticles.
[0022] (2) Stop heating and evacuate. After the system cools down, air is slowly passed into the furnace for passivation, and the sample is taken out after 48 hours of passivation.
[0023] figure 1 The XRD (X-ray powder diffraction) pattern of the product Mg nanoparticles of the above experiment can clearly see that the purity of the prepared Mg is relatively high.
[0024] figure 2 The TEM (transmission electron microscope) image of the above-mentioned experimental product Mg nanoparticles, it can be seen that the size of the Mg nanoparticles is about 40 nm.
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