|About this Abstract
||MS&T21: Materials Science & Technology
||Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
||Structure and High Temperature Mechanics of Binder Jet 3D Printed Ceramic Compacts Treated with Reactive Precursors
||Lynnora O. Grant, C. Fred Higgs III, Zachary C. Cordero
|On-Site Speaker (Planned)
||Lynnora O. Grant
The small initial interparticle contact area intrinsic to binder jet printed components makes them susceptible to creep at early stages of sintering, with ceramics being particularly susceptible to distortion when printed with traditional binders that burnout before the sintering temperature is reached. In our work, we address this challenge by introducing a reactive binder that reinforces interparticle contacts prior to sintering. By combining results from scanning electron microscopy and high temperature dilatometry experiments, we quantify the ways the reactive binder affects the microstructure, densification, and creep properties. Additionally, we show how the reactive binder treatment alters the high temperature sintering properties of the powder compact such as the uniaxial viscosity and the sintering stress. The contributions from this work provide insights for designing reactive binder and component systems robust against high temperature distortion.