HSP – High-throughput Synthesis and Processing
HT-MAX hypothesis: Novel ultra-high temperature ceramics (UHTCs) with relevant microstructure, geometry, and size will be systematically realized through innovative feedback fabrication and extrusion-based additive manufacturing (AM).
HSP Objectives
- Develop synthesis techniques to enable multi-material coupons for HT characterization;
- Control microstructure via guided printing of the PSD; and
- Understand the kinetic pathways to form novel compositionally complex UHTC powders from methane and ammonia decomposition reactions on a diverse range of refractory alloy powder precursors.
- Study the processing-structure-property relationships via AM approaches with multi-particle inputs to affect microstructure
Synthesis of Compositionally Complex UHTCs
- Gas atomization of custom refractory alloy powders
- Conversion of metallic powders to UHTCs in methane and ammonia
- Alloy composition impact on transformation
- Gas composition impact on competition to form carbides, nitrides, or carbonitrides
- Synthesis and infiltration of porous ceramics to create composites
Additive Manufacturing of UHTCs via Material Extrusion
- Utilize novel particle compositions from McCue group
- Investigate dynamic control of discrete and gradient composition
- Control Particle Size Distributions for effect on microstructural development and mixing
- Targeted on-site characterization for faster iterations of throughput
- High-throughput samples for partners