Method for preparing micro spherical niobium (Nb)-wolfram (W)-molybdenum (Mo)-zirconium (Zr) alloy powder

Abstract

The invention belongs to the field of powder materials and particularly provides a method for preparing micro spherical niobium (Nb)-wolfram (W)-molybdenum (Mo)-zirconium (Zr) alloy powder. According to the method, the mechanical alloying technology is used for preparing Nb-W-Mo-Zr alloy powder, and then the radio frequency plasma spheroidization technology is used for treating the mechanical alloying alloy powder to obtain the micro spherical Nb-W-Mo-Zr alloy powder which is suitable for being used for manufacturing micro thin-wall parts in an injection forming mode, wherein the average particle diameter of the micro spherical Nb-W-Mo-Zr alloy powder is less than 20 micro meters. The method for preparing the micro spherical Nb-W-Mo-Zr alloy powder overcomes the defect that through a traditional niobium alloy powder preparation technology, only powder with particles which are in irregular shapes or have long diameters can be prepared, the average particle diameter of the prepared micro spherical Nb-W-Mo-Zr alloy powder is less than 20 micro meters, and the prepared micro spherical Nb-W-Mo-Zr alloy powder is high in degree of sphericity and good in flowability, is quite suitable for being used for manufacturing thin-wall Nb-W-Mo-Zr alloy parts in a powder metallurgy mode, is especially suitable for being used for manufacturing the thin-wall Nb-W-Mo-Zr alloy parts in the injection forming mode.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows preparation of small particles with specific properties such as low crystal grain growth rate or smooth surface finishes on their surfaces without causing any issues during manufacturing processes like casting. These characteristics make them ideal materials for use in electronic devices where they have many benefits including improved performance at higher temperatures compared to traditional methods used for creation of these components.

Problems solved by technology

This patented describes various techniques for producing nanoparticles called NanoSpher® made up of tantalum oxynobalt (TaO2), nickel/irony aluminum (Ni—Cr)/nickel alloy (NANA-312991), maghemite ceramics, bismuth compounds, silver amber rods, and platinum wire. However, current technologies cannot produce finer and narrower nanoshefnix powders accurately without generating defective nodules caused by impurities like boron, phosphorus, silicon, sulfur, chromia, vanadium, and zinc.

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