@conference{
author = "Filipović, Suzana and Hilmas, Gregory E. and Fahrenholtz, William G. and Obradović, Nina and Curtarolo, Stefano",
year = "2024",
abstract = "Dual phase high entropy ceramics are attractive due to potential synergetic effects of the constituents on mechanical properties and thermal stability. In this research, dense, dual phase (Hf,Mo,Ti,W,Z) B2-(Hf.Mo.Ti.W,Zr)C powder was synthesized by varying the contents of the transition metals in the final product. The co-synthesis method was used to obtain boride and carbide constituents by boro/ carbothermal reduction of mixtures of oxides and appropriate amounts of carbon black and B4C. Solid solution formation and densification of the reacted powders were done utilizing two step spark plasma sintering or hot pressing processes. Phase compositions of the produced ceramics were identified by x-ray diffraction while chemical compositions were measured using energy dispersive spectroscopy. The final microstructures showed submicron grains due to pining effect of the two phases. Investigation of the mechanical properties showed increasing in Vickers hardness values s up to 48.6 2.2 GPa for applied load of 0.49N for compositions with optimized elemental contents. Room temperature strength was also measured.",
publisher = "American Ceramic Society",
journal = "Abstract Book / 48th International Conference & Exposition on Advanced Ceramics and Composites, January 28–February 2, 2024, Daytona Beach, Florida",
title = "Synthesis and Properties of (Hf,Mo,Ti,W,Zr)B2-(Hf,Mo,Ti,W,Z)C Dual Phase Ceramics",
url = "https://hdl.handle.net/21.15107/rcub_dais_16386"
}