{"686644":{"#nid":"686644","#data":{"type":"event","title":"PhD Proposal by Alex Butler","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003EAlex Butler\u003C\/strong\u003E\u003Cbr\u003EAdvisor: Prof. Aaron Stebner and Prof. Josh Kacher\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003Ewill propose a doctoral thesis entitled\u003C\/em\u003E,\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EThe Process-Structure-Property Relationship of Aluminum Metal Matrix Composites Reinforced via Reactive Additive Manufacturing\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cem\u003EOn\u003C\/em\u003E\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003ETuesday, December 9th at 2:00 pm\u003C\/p\u003E\u003Cp\u003EIn\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EJ. Erskine Love Jr. Manufacturing room\u0026nbsp;299\u003C\/p\u003E\u003Cp\u003EAnd\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003EZoom Link:\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/gatech.zoom.us\/meetings\/91380402841\/invitations?signature=RjTjl_x3-TB-A5b0XR4fKSMwQFq_ptdgJV62Aup4z9w\u0022 title=\u0022https:\/\/gatech.zoom.us\/meetings\/91380402841\/invitations?signature=RjTjl_x3-TB-A5b0XR4fKSMwQFq_ptdgJV62Aup4z9w\u0022\u003Ehttps:\/\/gatech.zoom.us\/meetings\/91380402841\/invitations?signature=RjTjl_x3-TB-A5b0XR4fKSMwQFq_ptdgJV62Aup4z9w\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003EMeeting ID: 913 8040 2841\u003C\/p\u003E\u003Cp\u003EPasscode: 352794\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 Mechanical Engineering (advisor)\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Josh Kacher\u2013 School of Materials Science \u0026amp; Engineering (advisor)\u003Cbr\u003E\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp;\u0026nbsp; Prof. Naresh Thadhani \u2013 School of Materials Science \u0026amp; Engineering\u003Cbr\u003E\u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; \u0026nbsp; Prof. Rick Neu \u2013 School of Mechanical\u0026nbsp;Engineering\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u2002\u2002\u2002\u2002\u2002\u2002Dr. Ashely Spear- University of Utah, School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E\u003Cbr\u003EAluminum alloys have various applications in aerospace, automotive, and ground based military craft due to their high strength to weight ratio, ductility, low density, and low cost. Laser powder bed fusion (PBF-LB) is an additive manufacturing technique that allows for these parts to be fabricated with more complex geometries than traditional casting methods. However, aluminum is very difficult to additively manufacture in this manner due to its wide solidification range, high thermal conductivity, and high laser reflectively producing a part with cracks and columnar grains. Inoculation is one method to improve the printability of aluminum through the nucleation of finer grain sizes. Reactive additive manufacturing (RAM) forms the inoculants in situ during laser powder bed fusion through chemical reactions between the starting powders. Here, we mix titanium and boron carbide powders with A1000 powders to form aluminum reinforced with TiB2 and TiC following laser powder bed fusion. The addition of these particles has been shown to improve the strength of aluminum alloys and refine the microstructure, but the reaction process has also been shown to not be fully carried out following PBF-LB leaving a variety of coarse particles and precipitates distributed throughout the aluminum matrix. In the first part\u0026nbsp;of\u0026nbsp;this thesis, I will reveal the mechanisms by which the addition of these particles enhances the ductility along with the strength using a combination of mechanical testing, electron microscopy, and statistical analysis. In the second part, I will produce statistical metrics for understanding the contribution of the partially reacted titanium particles to the fracture behavior. In the third part, I will construct a method for the reaction process in our material to complete with an understanding of the underlying thermodynamics followed by an analysis of the mechanical properties.\u0026nbsp;Implications of this work will include informing the manufacturing and material design of aluminum metal matrix composites through a fundamental understanding on the structure-property effects of\u0026nbsp;in situ formed particle reinforcements\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe Process-Structure-Property Relationship of Aluminum Metal Matrix Composites Reinforced via Reactive Additive Manufacturing\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"The Process-Structure-Property Relationship of Aluminum Metal Matrix Composites Reinforced via Reactive Additive Manufacturing"}],"uid":"27707","created_gmt":"2025-11-30 18:14:39","changed_gmt":"2025-11-30 18:15:12","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2025-12-09T14:00:00-05:00","event_time_end":"2025-12-09T16:00:00-05:00","event_time_end_last":"2025-12-09T16:00:00-05:00","gmt_time_start":"2025-12-09 19:00:00","gmt_time_end":"2025-12-09 21:00:00","gmt_time_end_last":"2025-12-09 21:00:00","rrule":null,"timezone":"America\/New_York"},"location":"J. Erskine Love Jr. Manufacturing room 299","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":""}}}