Improved Atomization Processing for Fossil Energy Applications
Personnel
Project Leader(s):
Iver Anderson
Principal Investigators:
Iver Anderson
Overview
This project seeks to enhance the control of metal powder production by gas atomization methods to benefit the implementation of several emerging Fossil Energy technologies that utilize metal powders of specific size ranges and types, not efficiently produced by industrial powder makers. Further improvements in fundamental understanding and design of high efficiency gas atomization nozzles will be directed toward maximizing powder yields in special size classes, including ultrafine (dia. < 10 µm) and mid-range (10 µm < dia. < 44 µm) powders. Efficient production of such powders can eliminate a major technological barrier to the use of new concepts for fabrication, for example, hydrogen membranes, heat exchanger tubing, and oxidation/sulfidation resistant coatings. To provide a direct route for rapid transfer of the atomization technology improvements, powder production tests will be performed in laboratory atomization systems that can demonstrate advanced industrial operation in terms of steady-state operation and controls systems. The laboratory atomization experiments will also involve detailed analysis of atomization process response to alloy and parameter modifications to verify the effect of process innovations. To facilitate investigation of powder processing of the complex alloys involved with Fossil Energy applications, initial work will involve pure metals and simple model alloys for each target area of process or alloy development.
Publications
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Anderson Iver E; Rieken Joel R; Meyer John; Byrd David; Heidloff Andrew . 2011. Visualization of Atomization Gas Flow and Melt Break-Up Effects in Response to Nozzle Design Variations: Simulation and Practice. Advances in Powder Metallurgy & Particulate Material — 2011. 1:15. abstract
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Rieken J R; Anderson I E; Kramer M J . 2010. Microstructure Evolution of Gas-Atomized Iron-Base Ods Alloys. International Journal of Powder Metallurgy. 46:17-31. abstract
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Reiken Joel R; Anderson Iver E; Kramer Matthew J . 2010. Gas-Atomized Chemical Reservoir ODS Ferritic Stainless Steels. Advances in Powder Metallurgy & Particulate Material — 2010. 1:112. abstract
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