Particle Engineering: Metal Powders and Additive Manufacturing from a Characterization Viewpoint
Metal powders have long been used in injection molding processes and are now increasingly employed as laser sintered layers in the additive manufacturing process also known as 3D printing. Relative success in any volume filling/volume building process depends on understanding how particles flow as a powder, pack together, and how intentional or unintentional occluded porosity (both open and closed) affects the final density.
· Powder density and flowability by tapping
· Skeletal density measurements by gas pycnometry
· Open-pore size distributions by mercury intrusion porosimetry
· Surface area measurements by gas adsorption
In this webinar, you will learn how to quickly and easily predict powder flowability/layer density and die filling, how to quickly and evaluate alloy composition by density and discover closed porosity and quantify open porosity after fabrication, how the pore size distribution of an open pore network in the finished piece can be quantified from mm to nm scale, and how to direct surface area measurements complement and supplement particle size measurements. This webinar is intended for everyone involved in researching and developing metal powders and for those who need to assure the quality of manufactured powders and of intermediates and final products made from powders. Even though the focus is on metal powders, the concepts and methodologies are equally applicable to ceramics and polymers.
Trainer: Dr. Martin Thomas
Dr. Thomas, Anton Paar QuantaTec’s Chief Scientist, has more than 37 years of experience in powder and porous materials characterization, 27 of those with Quantachrome Instruments before Anton Paar’s acquisition in 2018. Dr. Thomas graduated from the University of Birmingham (UK) with a Master’s degree in analytical chemistry followed by a PhD in physical-inorganic chemistry. He is named co-inventor on eight patents relating to porous solids and their characterization, and is co-author of “Characterization of Porous Solids and Powders: Surface Area, Pore Size and Density” (published by Springer).
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