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...
High thermoelectric performance and low lattice thermal conductivity in lattice-distorted high-entropy semiconductors AgMnSn1–xPbxSbTe4. Chem. Mater. 34, 8959–8967 (2022). Article CAS Google Scholar Rost, C. M. et al. Electron and phonon thermal conductivity in high entropy carbides with ...
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. Hence, advancement in the field needs more theoretical contributions. Here we introduce...
As the demand increases for UHTCs with improved macromechanical properties, the development of a new range of high performance high-entropy carbides should be possible if a better understanding of their deformation behaviour at the micro-scale can be obtained. The yield and failure strength of the...
carbides, electrochemistry, high-entropy materials, nanoparticles, ultra-high-temperature ceramicsHigh-entropy alloys and compounds are becoming an important class of new materials due to their outstanding refractory and high-temperature properties. However, preparation in bulk quantities and in powder form...
High thermoelectric performance and low lattice thermal conductivity in lattice-distorted high-entropy semiconductors AgMnSn1–xPbxSbTe4. Chem. Mater. 34, 8959–8967 (2022). Article CAS Google Scholar Rost, C. M. et al. Electron and phonon thermal conductivity in high entropy carbides with ...
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 ...
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....
entropy single phase: the narrower the distribution, the more likely it is to form a high-entropy single phase at finiteT.bThe X-ray diffraction patterns for the same 9 five-metal carbides, where the first six compositions exhibit only the desired fcc structure peaks, whereas the additional ...