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Meeting MS&T22: Materials Science & Technology
Symposium Advanced Materials for Harsh Environments
Presentation Title New Strategies for Designing Colloidal Inks for Additive Manufacturing of UHTCs
Author(s) Julia Noel Goyer, Carolina Tallon
On-Site Speaker (Planned) Julia Noel Goyer
Abstract Scope Increased shaping capacity for Ultra-High Temperature Ceramics (UHTCs) is paramount to their desired use in thermal protection systems for hypersonic vehicles. Through understanding of colloidal processes such as gelcasting and slip casting, an array of colloidal inks can be designed for ceramic additive manufacturing. This work compares inks that solidify by different mechanisms such as solvent evaporation, chemical curing, or yield stress rheology, and modeled the rheological behavior upon deposition. Layer adhesion and in-layer homoegeneity have been compared in addition to differences in green properties between additive and colloidal routes that utilize identical formulations. Colloidal routes using Zirconium Diboride have achieved >60% green density, and in gelcasting, showed a compressive green strength above 4 MPa, an order of magnitude increase compared to slip casting. The combination of advanced additive manufacturing ink development with different consolidation mechanisms has the potential of opening up new avenues for more cost-effective manufacturing of UHTCs.
Proceedings Inclusion? Planned: At-meeting proceedings

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An Investigation of High Temperature Corrosion Sensing for Coal-based Power Plant Operations
Characterization of Nb-Si Alloys for High-temperature Applications
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Corrosion Detection in Oil and Gas Pipeline Using 3-D Bluetooth Printed Microsensor
Corrosion Phenomena in Powder-Processed Aluminum Alloys Containing Quasicrystalline Dispersoids
Electrochemical Characterization of Joints Inconel 600 to TiC-Composites, Immersed in Seawater
Exfoliated-graphite-based Flexible Graphite as a Multifunctional Material for Harsh Environments
Expulsion of Arsenic Metals from Water Using Zinc Nanoparticles: A Review
Far-Field Passive Wireless Sensors using Conductive Ceramic for High-Temperature Health Monitoring
Grain Boundary Engineering to Improve Austenitic Stainless Steels Stress Corrosion Cracking Behavior in Boiling Saturated Magnesium Chloride Solutions
Heat-Resistant Nickel Alloy ЖС3ДК-ВІ Modification with Titanium Carbonitride Ultrafine Powders
High Temperature Irradiation Resistant Thermocouples for In-Pile Temperature Sensing
High Temperature Thick Film Sensor Development Based on Doped Lanthanum Chromites Refractory Semiconductors Materials
Integrating Multimodal Corrosion with Correlative Microscopy Across Multiple Lengthscales
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Modeling of High-efficiency Heat Exchanger Pipe with Twisted Tape Inserts
New Strategies for Designing Colloidal Inks for Additive Manufacturing of UHTCs
Rhenium Free Heat-resistant Monocrystalline Nickel Alloy Development
Root Cause Spectroscopic Failure Investigation Aided by High Resolution SEM/EDS, FT-IR, XPS Instruments
Silica Nanoparticles via Sol Gel Synthesis: A Concise Review on the Expulsion of Heavy Metals from Their Solution
Stress Corrosion Mitigation in Al-Mg via Zn-Rich Primers and Long-Term Performance Stability
The Role of Residual Stress in Crystallographic Orientation Dependent Corrosion Rates of Aluminum
Titanium Coatings on Materials for Harsh Environments and Corrosion in Interaction with the Environment in Coke Production
Understanding Hydration-induced Cracking, Corrosion and Self-healing Mechanisms in Advanced Concrete Using Electron Microscopy and Quantitative Non-destructive 3D Mineral Characterization
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