|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||Additive Manufacturing of Three-dimensional Carbon Microlattices
||Akira Kudo, Federico Bosi, Julia R Greer
|On-Site Speaker (Planned)
3D printing has become a promising manufacturing technique, especially for materials whose precise microfabrication is challenging. We developed a process to fabricate three-dimensional lattices made of amorphous and graphitic carbon. This is accomplished by first 3D printing the lattices in photoresist and then pyrolyzing the printed structures in vacuum with temperature increasing stepwise. The resulting microlattices have beam diameters less than 100Ám, unit cell sizes of 300Ám, and an overall sample size on the order of a few millimeters. We used Joule heating to graphitize the amorphous carbon microlattices. We characterize the chemical composition by using SEM, TEM, and Raman spectroscopy, and investigate mechanical and electrical properties of each carbon microlattices to convey the differences in these properties as a function of carbon-based microstructure and 3D architecture. The developed technique promises to enable effective additive manufacturing of complex devices that combine mechanical and high-temperature stability, light weight, and functionality.
||Planned: Supplemental Proceedings volume