||The use of powder materials in manufacturing has a long history, and the interest in these materials has spiked with the rise in popularity of additive manufacturing. However, the simple act of breaking a bulk material down into sufficiently small particles can be very energy-intensive, whether this is done via mechanical comminution, atomization, deposition, etc. Furthermore, most powder-based processing methods have strict requirements on the purity, flowability, and packing behavior of the feedstock. Therefore, the size distribution, morphology, chemistry, and other properties of the particles must be carefully controlled. For these reasons, powder materials suitable for particular applications can be notoriously difficult and/or expensive to produce. As such, there is a definite need in the industry to improve the energy/cost-efficiency of powder production, as well as develop effective recycling techniques to improve overall yield. Example topics for this symposium include, but are not limited to, analyzing or improving powder production efficiency, methods for improving powder flowability/packing/purity, alloy development, powder recycling methods, powder production from scrap or other low-cost sources, process/feedstock recyclability analysis, etc. Furthermore, this symposium welcomes topics on both experimental and modeling work.