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Optimization of High-Performance Nanostructured Powder Metallurgy Materials

Particle Characterization

In this note, we will briefly explore the history of powder metallurgy and then examine the importance of powder quality to the production of nanomaterials. Using a case study from the Vecchio lab at the University of California, San Diego, we will highlight the necessity of accurate particle sizing in the production of nanoparticles by spark erosion. Data from the ViewSizer 3000 indicates that particle quality and process control can be heavily reliant on capacitance charge, and that the choice of liquid dielectric has a significant impact on the resulting size distribution.

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Optimization of High-Performance Nanostructured Powder Metallurgy Materials

The optimization of high-performance nanomaterials produced by powder metallurgy requires nanopowders created with specific particle sizes. Spark erosion produces nano-powders with broad PSDs that cannot be quantified reliably using traditional sizing techniques. This has hindered optimization of the spark erosion process to fine tune the production of nanopowders.

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