Synthesis of high-entropy carbides (HEC) requires high temperatures that can be provided by electric arc plasma method. However, the formation temperature of a single-phase sample remains unknown. Moreover, under some temperatures multi-phase structures can emerge. In this work, we developed an ...
Here, we proposeplasmonic transition-metalhigh-entropycarbides (PHECs) as a class of multifunctional materials able to couple thermal stability, mechanical resistance, and plasmonic properties in the near-IR and visible range. Indeed, they gather the good plasmonic properties of TaC, the superior mec...
Experimental results for high-entropy carbides synthesis and characterization.aProgression of a sample of HfNbTaTiVC5through each processing step: hand mixing (magenta spectrum, bottom), ball milling (blue spectrum, center), and spark plasma sintering (green spectrum, top), depicting the evolution to...
et al. Electron and phonon thermal conductivity in high entropy carbides with variable carbon content. Acta Mater. 196, 231–239 (2020). Article CAS Google Scholar Zhang, R.-Z., Gucci, F., Zhu, H., Chen, K. & Reece, M. J. Data-driven design of ecofriendly thermoelectric high-...
et al. Electron and phonon thermal conductivity in high entropy carbides with variable carbon content. Acta Mater. 196, 231–239 (2020). Article CAS Google Scholar Zhang, R.-Z., Gucci, F., Zhu, H., Chen, K. & Reece, M. J. Data-driven design of ecofriendly thermoelectric high-...
pronounced than that in crystalline alloys, exhibiting a monotonically increasing trend akin to that observed in amorphous superconductors. Moreover, the relationship between VEC andTcin NaCl-type high-entropy carbides is highly consistent with that in BCC-type (TaNb)1-x(ZrHfTi)xHEA superconductors....
direct selective laser sintering (SLS) process was successfully demonstrated for additive manufacturing of high-entropy carbide ceramics (HECC), in which a Yb fiber laser was employed for ultrafast (in seconds) reactive sintering of HECC specimens from a powder mixture of constitute monocarbides. A...
High-entropy carbidesMechanical propertiesWith a combination of first-principles calculations and thermodynamics formalism of configurational mixing entropy, we have constructed three-dimensional phase diagram in terms of thermodynamic and structural parameters including the configurational mixing entropy and ...
Sythesized high-entropy transition metal carbides, (Hf0.25Zr0.25Nb0.25Ta0.25)Cx(x=1, 0.8, 0.6, or 0.5) using high-pressure technique.Analyzed the mechanical properties of high-entropy ceramics using density function theory and experiments.(Hf0.25Zr0.25Nb0.25Ta0.25)C0.6and (Hf0.25Zr0.25Nb0.25Ta...
The need for improved functionalities in extreme environments is fuelling interest in high-entropy ceramics1,2,3. Except for the computational discovery of high-entropy carbides, performed with the entropy-forming-ability descriptor4, most innovation has been slowly driven by experimental means1,2,3...