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Meeting MS&T23: Materials Science & Technology
Symposium Emergent Materials Under Extremes and Decisive In Situ Characterizations
Presentation Title Will High-entropy Carbides Be Enabling Materials for Extreme Environments?
Author(s) Bai Cui, Fei Wang , Lanh Trinh, Luke Wadle, Yongfeng Lu, Kaustubh Bawane, Zilong Hua, Linu Malakkal, Lingfeng He, Cody Dennett, Frederic Monteverde
On-Site Speaker (Planned) Bai Cui
Abstract Scope The concept of multi-principal component has created promising opportunities for the development of novel high-entropy ceramics for extreme environments encountered in advanced turbine engines, nuclear reactors, and hypersonic vehicles, as it expands the compositional space of ceramic materials with tailored properties within a single-phase solid solution. The unique physical properties of some high-entropy carbides, such as higher hardness, high-temperature strength, lower thermal conductivity, and improved irradiation resistance than the constitute ceramics, have been observed. These promising properties may be attributed to compositional complexity, atomic-level disorder, lattice distortion, and other fundamental processes related to defect formation and phonon scattering. This presentation focuses on the evaluations of the performance of these novel ceramic materials in extreme high-temperature, irradiation, and gaseous environments.


Capturing Laser Induced Dynamics of Materials via Single-Shot Ultrafast Transmission Electron Microscopy
HP-XAFS and Its Application to Topological Insulator Bi2Te3
In-situ Observations of the High Temperature Melting Behaviour of Ce-brannerite
In-situ Raman Studies on Synthesis and Oxidation of UC1-xNx
In-situ/Operando Characterization of Emerging Materials with MeV Ultrafast Electron Diffraction at SLAC National Accelerator Laboratory
In Situ Characterization and Modeling of Spent UO2 Fuel under Ion Irradiation
Irradiation Induced Structural and Thermal Conductivity Changes in Nuclear Fuels
Magnetic Scattering and Spectroscopy at High Pressures at APS and APS-U
Modulation of Structure-function Motifs in Optoelectronic Metal Halides Using High Pressure
Neutron Scattering for Studying Materials Under Extreme Conditions
Perspectives of IXS and NRS Studies in the APSU Era
Polar Magnets in High-Pressure Exotic Perovskites
Pressure-induced Non-monotonic Crossover of Steady Relaxation Dynamics in a Metallic Glass
Pressure Driving Dual-layer Superconductivity in 4Hb-TaSe2 TMD
Structural Manipulation of Ceramic Materials via Extreme Conditions
Will High-entropy Carbides Be Enabling Materials for Extreme Environments?

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