|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Ceramic Materials for Nuclear Energy Research and Applications
||High-entropy Carbide Ceramics: New Materials for Extreme Environments in Nuclear Energy Applications
||Bai Cui, Fei Wang, Lanh Trinh, Xueliang Yan, Yongfeng Lu, Kaustubh Bawane, Zilong Hua, Linu Malakkal, Lingfeng He, Cody Dennett
|On-Site Speaker (Planned)
The concept of entropy stabilization has created promising opportunities for the design of new ceramic materials for extreme environments encountered in advanced nuclear reactors. High-entropy carbide ceramics (HECCs) are a family of transition metal carbides with multiple metal elements in an equal or near-equal atomic ratio in the cation position but forms a stable single-phase rock salt structure. The compositional complexity in HECCs can induce the atomic-level disorder, significant lattice distortion, and unique physical properties such as higher hardness, lower thermal conductivity, and improved oxidation resistance than the binary transition metal carbides. Since 2018, our team has developed spark plasma sintering and selective laser sintering processes for the synthesis and advanced manufacturing of HECCs, reported their thermal and mechanical properties, and investigated their irradiation damage resistance. This talk will focus on our experimental research activities to reveal fundamental mechanisms governing the processing-microstructure-property relationship in these novel ceramic materials.