A molybdenum-copper alloy spherical powder and a preparation method thereof

Molybdenum-copper alloy powder was prepared by ball milling, isostatic pressing, melt infiltration sintering and rotating electrode atomization technology, which solved the problems of uneven distribution of molybdenum and copper phases and poor sphericity. The resulting molybdenum-copper alloy powder with high sphericity and narrow particle size distribution improved its mechanical properties and application prospects.

CN119387580BActive Publication Date: 2026-07-03XIAN UNIV OF TECH +1
View PDF 4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN UNIV OF TECH
Filing Date
2024-10-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing spherical powders of molybdenum-copper alloys, the molybdenum and copper phases are unevenly distributed, resulting in poor sphericity, wide particle size distribution, and poor mechanical properties.

Method used

Molybdenum powder and copper powder are mixed in a ball mill, and then molybdenum-copper rod blanks are prepared by isostatic pressing and melt infiltration sintering. Then, molybdenum-copper alloy powder is prepared by a rotating electrode atomization device, and then screened by a vibrating sieve to obtain molybdenum-copper alloy powder with high sphericity and narrow particle size distribution.

Benefits of technology

The prepared molybdenum-copper alloy powder has a regular surface morphology, few defects, narrow particle size distribution, high sphericity, high hardness, and uniform structure, making it suitable for 3D printing, powder metallurgy, and high-entropy alloys.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119387580B_ABST
    Figure CN119387580B_ABST
Patent Text Reader

Abstract

A spherical powder of molybdenum-copper alloy and its preparation method are disclosed, relating to the field of alloy preparation technology. The preparation method includes: weighing molybdenum powder and copper powder and mixing them uniformly; adding the molybdenum-copper mixed powder and anhydrous ethanol to a ball mill and grinding with grinding balls; after grinding, sieving the molybdenum-copper mixed powder and filling it into a rubber sleeve, placing it in an isostatic pressing device for pressurization, removing the rubber stopper after pressing, and taking out the molybdenum-copper rod blank; placing the molybdenum-copper rod blank in an alumina ceramic boat and sintering it in a high-temperature furnace; after sintering, machining an external thread on one end of the molybdenum-copper rod blank to obtain a molybdenum-copper alloy rod; assembling the molybdenum-copper alloy rod into the material feeder of a rotating electrode atomizing device, filling it with a protective atmosphere, collecting the molybdenum-copper alloy powder after pressing, and obtaining spherical powder of molybdenum-copper alloy after sieving. The powder has a regular surface morphology, few defects and agglomerations, narrow particle size distribution, high sphericity, and no obvious layering, interface or segregation problems.
Need to check novelty before this filing date? Find Prior Art