Method for producing a metal powder, comprising an electric explosion of a piece of a steel wire

A method for producing a metal powder, comprising:

• carrying out an electric explosion of a piece of a steel wire made of low-carbon steel inside a reactor at a pressure of a gaseous medium of 105 Pa and its forced circulation;
• performing a pre-evacuation of a volume contained inside the reactor and pipes connecting the reactor to a cyclone, wherein the cyclone comprises a lower part that is equipped with a hopper, to a residual pressure of 10−2 Pa;
• filling the reactor with carbon monoxide to a pressure of 105 Pa at a gas flow rate of 10 m/s at a reactor inlet;
• carrying out the electric explosion of the steel wire made of low-carbon steel at a specific energy of 7-18 KJ/g and a pulse duration of 1-2 μs;
• extracting products of the electric explosion by gas flow through the cyclone into the hopper for deposit;
• once the hopper is filled, halting the process of producing the metal powder, disconnecting the hopper from the cyclone, closing the hopper with a lid with an opening, and maintaining a state of the hopper for at least 48 hours to obtain a resulting metal powder;
• and
• removing the resulting metal powder and placing the resulting metal powder into a container for storage.