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Meeting MS&T25: Materials Science & Technology
Symposium Advances in Refractory High Entropy Alloys and Ceramics
Presentation Title Refractory High-Entropy Borides, Nanoalloys, and Dual-Phase Composites with a Broader Perspective
Author(s) Jian Luo
On-Site Speaker (Planned) Jian Luo
Abstract Scope Since 2016, we first reported a series of single-phase (refractory) high-entropy ceramics (HECs), including MB2 [Sci. Rep. 2016], MB [Scripta 2020], M3B4 [JAC 2021], and MB4 [JECS 2021] borides, perovskite [Scripta 2018] and YSZ-like fluorite [JECS 2018] oxides, and MSi2 [JMater 2019] and M5Si3 [Scripta 2022], and intermetallic compounds [Sci. Bull. 2019]. In 2020, we further proposed to extend HECs to "compositionally complex ceramics (CCCs)" [JECS 2020; JMS 2020] to include non-equimolar compositions and short/long-range orders to offer additional opportunities to tailor properties. This talk will discuss our earlier discoveries of high-entropy diborides as a new class of ultrahigh temperature ceramics (UHTCs) [Sci. Rep. 2016] and dual-phase high-entropy boride-carbide UHTCs [JECS 2020]. Subsequently, our more recent studies on high-temperature stable nanocrystalline refractory high-entropy alloys [JMS 2023] utilizing high-entropy grain boundaries (HEGBs) [perspective: Communications Materials 2023] and ultrafast sintering of refractory compositionally complex alloy-carbide composites [Scripta 2025] will be further discussed.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advancements and Challenges in Electron Beam Powder Bed Fusion of Refractory Alloys
AI-Driven Discovery of Compositionally Complex Alloys for Enhanced Mechanical Performance
Composition Design of Refractory Compositionally Complex Alloys Using Machine Learning Models
Creep Behavior of a Precipitation-Strengthened A2-B2 Refractory High Entropy Alloy
Design, Synthesis, and Properties of WTaCrVHf High Entropy Alloys
Elastic and Plastic Behavior of Refractory Multi-Principal-Element Alloys
Exploring the Thermodynamic Stability of the High Entropy Ultra-High Temperature Ceramic Composition Space (Ti,Zr,Hf,Nb,Ta)C1-x
Fundamental Property Measurements of Fully Dense (Cr,Mo,Ta,V,W)C1-x High-Entropy Carbide Ceramics
Heat Transport in WMoTaNbV High-Entropy Alloy via First-Principles Calculation
High-Entropy Oxides and Halides: Expanding the Energy-Materials Space
High-Temperature Mechanical Behavior of Refractory Alloys
Improving the Use of Machine Learning Tools for High Entropy Alloy Development
Mechanisms of Spall Failure in Niobium Subjected to High-Throughput Laser-Driven Micro-Flyer Impact
Microstructure, Micromechanical and Thermal Properties of Irradiated High Entropy Carbide Ceramics
Multi-Modal Characterization of the B2 Phase in the Ta-Re Binary System
Multiphase Design Strategies in Nb–Ti Refractory Alloys with Interstitial Alloying
On the Strength and Ductility of Refractory High Entropy Alloys
Refractory HEAs: From Nanomechanical Testing to Nanocrystalline Development
Refractory High-Entropy Borides, Nanoalloys, and Dual-Phase Composites with a Broader Perspective
Refractory High Entropy Alloys in Extreme Environments
Selective Laser Sintering and Spark Plasma Sintering of Compositionally Complex Carbide Ceramics
Simulations and Modelling of the Mechanical Behavior of Compositionally Complex Concentrated BCC Alloys
Tailoring Nb-Ti-Si-B RCCA Microstructures by Modeling and Thermomechanical Processing
Tensile Creep Mechanisms of the Nb45Ta25Ti15Hf15 and NbTaTiV Refractory High-Entropy Alloys
The Power and Beauty of Cantor’s First Experiment – A 20 Year Retrospective
Thermal Conductivity of High Entropy Ceramics Before and After Irradiation
Thermal Control During Laser Powder Bed Fusion of Pure Tungsten Through Optimization of Follower Beam
Tuning Chemical Short-Range Ordering and Mechanical Properties in a Ductile Refractory Multi-Principal-Element Alloy
Two-Shot Optimization of Compositionally Complex Refractory Alloys
ULTERA Data Ecosystem for Compositionally Complex Materials
Ultrasonic Atomization of a Hafnium Based Refractory High-Entropy Alloy Ti20Zr20Nb20Hf20Ta20
Understanding Compositional and Structural Non-Uniformities in Refractory High Entropy Alloys
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