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Meeting Materials Science & Technology 2020
Symposium 2020 Undergraduate Student Poster Contest
Presentation Title Analysis of High Entropy Ceramics Prepared via Steric Entrapment and Solid-state Sintering Methods: Crystal Structure
Author(s) Madeline Loveday, Matheus Pianassola, Merry Koschan, Charles L. Melcher, Mariya Zhuravleva
On-Site Speaker (Planned) Madeline Loveday
Abstract Scope This project was designed to evaluate phase formation of high-entropy ceramics made via one of two synthesis methods: solid-state sintering or steric entrapment. Powder x-ray diffraction was used for phase identification. The compositions studied are five-component rare-earth aluminum garnets or perovskites with the general formula RE3Al5O12 and REAlO3, respectively, where RE represents an equiatomic combination of five rare-earth elements. Three combinations were selected for study: (Lu, Yb, Y, Tb, Gd), (Lu, Yb, Y, Tb, Eu), and (Lu, Yb, Y, Eu, Nd). Parameters such as crystallization temperature and PVA dissolution methods were studied to optimize steric entrapment for these materials. The results of this research will be used to inform future precursor synthesis parameters for use in future crystal growth via the micro-pulling down method.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Additive Manufacturing of Titanium-based Functionally Graded Materials: Experiment Characterization and FEA Modeling
Alloying MnGeTe2 Enables High Thermoelectric Performance
Analysis of High Entropy Ceramics Prepared via Steric Entrapment and Solid-state Sintering Methods: Crystal Structure
Comparative Study of Transport propeties of Bismuth Sulfide with Different Dopants
Crack Driving Force Expressions Using Compliance Approach in Clamped Beam Bending Geometry
Crystal Structure and Lithium Ionic Transport Behavior of Li Site Doped Li7La3Zr2O12
Developing Materials and Coating Technologies for Mitigation of Lunar Dust Adhesion and Abrasion
Development of a Blast Furnace Simulator
Effect of Aspect Ratio on Stress Intensity Factor Solutions for Single Edge Notch Wire Fracture Test Specimen under Tensile and Clamped Bend Loading Conditions
Efficient and Stable Perovskite Solar Cells via Surface Passivation of an Ultrathin Hydrophobic Organic Molecular Layer
Innovative Preparation Methods of High Performance Magnetically Responsive Photonic Crystals
Maximizing Magnetostriction in Fe-Ga-Zr Nanocrystalline Alloys
Nanocrystalline Magnetic Metallic Microwave Absorbents Working at Elevated Temperature
Origin of the Phase Transition in Lithium Garnets
Quantitatively Accounting for the Effects of Surface Topography on the Oxidation Kinetics of Additive Manufactured Hastelloy X Processed by Electron Beam Melting
Supercritical Synthesis of VO2 Nanoparticles For Smart Window Films
Unique S-scheme Heterojunctions in Self-assembled TiO2/CsPbBr3 Hybrids for CO2 Photoreduction

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