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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals
Presentation Title Scaling Up Porous Copper Foams by Planetary Milling and Oxide Reduction
Author(s) Julian Tse Lop Kun, Adam Patrick Rutherford, Mark Atwater
On-Site Speaker (Planned) Julian Tse Lop Kun
Abstract Scope Powder metallurgy (PM) offers a growing list of benefits for the diversity of alloys possible and the ability to create complex geometries. The challenge is that powder processing methods based on templates are often complex, and simple methods, such as loose powder sintering, result in low pore volume fractions. The oxide reduction method allows individual particles to be foamed in loose form or processed by traditional PM and foamed at a later stage. The additional porosity can help bridge the gap between simplicity and performance. This method has only been demonstrated in small quantity, high-energy ball milling. In this report, we apply planetary ball milling to realize an order of magnitude increase in output with the potential for even more. The advancements in producing porosity within particles by oxide reduction, the combination with traditional porous powder methods, and the future implications for these unique materials will be discussed.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Copper / Nickel / Cobalt, Powder Materials


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Influence of Calcium Powder in Heavily Deformed Aluminum-calcium Metal-metal Composites
Investigations of Phase Transformations in a Blended Elemental Ti-Nb-Zr-O Alloys Prepared by a Field-assisted Sintering Technique
Microstructural Refinement and Uniformity of Refractory Metals
Microstructural/Mechanical Properties Relationship of Elongated Ti-15Mo Bars Produced by Unconventional Spark Plasma Sintering Technology
Scaling Up Porous Copper Foams by Planetary Milling and Oxide Reduction
Titanium Near Net Shape PM Parts Produced by Direct Powder Forging

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