About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
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Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
No On-Demand Only: Effects of Extrusion-based Additive Manufacturing on Thermoelectric Transport in Nickel and Bismuth |
Author(s) |
Victoria Jane Pederzani Stotzer, Christian Apel, Sarah J. Watzman, Ashley E. Paz y Puente |
On-Site Speaker (Planned) |
Victoria Jane Pederzani Stotzer |
Abstract Scope |
Conventional synthesis and manufacturing of thermoelectric materials is often tedious, time-intensive, and expensive with severe limitations in terms of resultant sample geometry and size. Recent work in additive manufacturing of thermoelectric semiconductors has identified current manufacturing limitations, including the need for post-processing that often leads to pore formation and decreased adhesion. Nevertheless, current work has not extensively studied how these methods alter thermoelectric transport. Specifically, we focus on a particle-laden ink extrusion printing process, which is conducted at room temperature, unlike the more commercially used powder bed fusion modality, and has proven successful with producing bulk Ni samples. Through altering printing parameters and sintering techniques, we study the microstructure of printed pure Ni and Bi, focusing specifically on densification, and observe the impact on thermoelectric transport behavior with the final goal of assessing whether or not particle-laden ink extrusion additive manufacturing is a viable technique for fabrication of thermoelectric devices. |