Preparation method of nano chromium carbide powder
A technology of nano-chromium carbide powder, which is applied in the field of production of nano-chromium carbide powder, can solve the problems of complex process, long time period, and unfavorable industrialization promotion, and achieve good dispersion effect
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Embodiment 1
[0018] Weigh 0.025 moles of chromium nitrate, 0.1 moles of glycine, and 0.025 moles of carbon source, dissolve various raw materials in deionized water to prepare a mixed solution, and place the solution on a temperature-controllable electric furnace for heating. After the solution undergoes a series of reactions such as volatilization, concentration, and decomposition, the precursor powder is obtained, and the precursor powder is reacted for 3 hours at 600°C in an argon atmosphere to obtain nano-chromium carbide powder.
Embodiment 2
[0020] Weigh 0.025 mol of chromium nitrate, 0.025 mol of glycine, and 0.0125 mol of carbon source, dissolve various raw materials in deionized water, prepare a mixed solution, and place the solution on a temperature-controllable electric furnace for heating. After the solution undergoes a series of reactions such as volatilization, concentration, and decomposition, the precursor powder is obtained, and the precursor powder is reacted at 900 ° C for 2 hours under the conditions of argon atmosphere to obtain nano-chromium carbide powder.
Embodiment 3
[0022] Weigh 0.025 mol of chromium nitrate, 0.1 mol of glycine, and 0.0375 mol of carbon source and dissolve them in distilled water to prepare a solution, and heat the solution on a temperature-controllable electric furnace. The solution reacts after undergoing a series of processes such as volatilization, concentration, and decomposition to obtain a precursor powder. The precursor powder is reacted in a furnace at 800°C and nitrogen atmosphere for 1.5 hours to obtain nano-chromium carbide powder.
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