{"688260":{"#nid":"688260","#data":{"type":"event","title":"PhD Proposal by Michael Rademacher","body":[{"value":"\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EMichael Rademacher\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EAdvisor: Prof. Stebner\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled:\u003C\/em\u003E\u003Cbr\u003E\u003Cstrong\u003EUltrasonically atomized nanogalvanic aluminum powder for hydrogen gas production.\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003EFriday, February 27th at 10:30 a.m.\u003Cbr\u003ELove 183\u003C\/p\u003E\u003Cp\u003Eand\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;Virtually via\u0026nbsp;\u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/26753790405070?p=MuhpiEiJmKnlqlSKPv\u0022 target=\u0022_blank\u0022 title=\u0022Meeting join\u0022\u003Ehttps:\/\/teams.microsoft.com\/meet\/26753790405070?p=MuhpiEiJmKnlqlSKPv\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Aaron Stebner \u2013 School of Materials Science and Engineering (advisor)\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Josh Kacher\u2013 School of Materials Science and Engineering\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Preet Singh \u2013 School of Materials Science and Engineering\u003C\/p\u003E\u003Cp\u003E\u2002\u2002\u2002\u2002\u2002\u2002Prof. Rick Neu \u2013 School of Mechanical Engineering\u003Cbr\u003E\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Dr. Kris Darling \u2013 Army Research Lab\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003Cbr\u003E\u2002\u2002\u2002\u2002\u2002\u2002Hydrogen fuel cells are an effective way to ensure access to electricity in even the harshest environments. Currently, the US military imports most of its energy supplies from outside of its bases\u2014often at a high monetary and human cost. At the same time, US military bases generate large quantities of waste. Specifically, scrap aluminum and gray water. It is well known that aluminum reacts readily with water to produce hydrogen gas, but this reaction passivates quickly at the surface of the aluminum. Two simultaneous strategies serve to mitigate this passivation. First, maximizing the surface area of produced powder allows more of the bulk of each sample to react. Second, precisely alloying anodic aluminum with dissimilar cathodic metals\u2014namely tin and bismuth\u2014to create a galvanic couple and thus increase the reaction rate between aluminum and water to such an extent that it outpaces the passivation rate experienced at the surface, allowing for the reaction to move inwards into the bulk of the aluminum particles. The problem presented here is to make powder with sufficient surface area, and with the optimal microstructure for the galvanic couple, to achieve high reaction yields.\u003C\/p\u003E\u003Cp\u003E\u2002\u2002\u2002\u2002\u2002\u2002\u003C\/p\u003E\u003Cp\u003E\u2002\u2002\u2002\u2002\u2002\u2002This study aims to employ ultrasonic atomization to make nanogalvanic aluminum powder for use in hydrogen generation. To accomplish this goal, several objectives must be met. First, optimizing the ultrasonic atomization process to produce the desired microstructure for nanogalvanic aluminum powder. To support this optimization, the development of coatings in both the atomizing and melting apparatuses to limit impurity pickup during powder production. Next, determining the optimal microstructure that most fully realizes the hydrogen-yielding potential of this nanogalvanic powder. Finally, the design and implementation of a meltpool flow model for atomization process control and outcome prediction. These goals, if met, will result in reproducible nanogalvanic aluminum powder that optimally delivers hydrogen gas upon exposure to water.\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003E\u003Cstrong\u003EUltrasonically atomized nanogalvanic aluminum powder for hydrogen gas production.\u003C\/strong\u003E\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Ultrasonically atomized nanogalvanic aluminum powder for hydrogen gas production."}],"uid":"27707","created_gmt":"2026-02-13 21:24:41","changed_gmt":"2026-02-13 21:25:19","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-02-27T10:30:00-05:00","event_time_end":"2026-02-27T12:30:00-05:00","event_time_end_last":"2026-02-27T12:30:00-05:00","gmt_time_start":"2026-02-27 15:30:00","gmt_time_end":"2026-02-27 17:30:00","gmt_time_end_last":"2026-02-27 17:30:00","rrule":null,"timezone":"America\/New_York"},"location":"Love 183 and   Virtually ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}