Abstract Scope |
In recent years, high entropy ceramics (HECs) have been investigated for their superior strength, corrosion resistance, and high temperature stability. HECs can be defined as solid solutions composed of five or more principle elements in equimolar ratios, forming one single phase, and therefore consisting of a system of high entropy. We have implemented the solvothermal process to synthesize high entropy metal carbides (HEMCs), specifically (MoNbTaVW)C. En route to this HEMC, we have produced binary, ternary, quaternary, quinary, and senary metal carbides. Solid solutions of (NbTa)C and (NbTaW)C have been confirmed by a combination of X-ray diffraction and energy-dispersive spectroscopy. We are using Rietveld refinement to deconvolute the X-ray diffraction data and obtain approximate phase compositions in our compounds to optimize precursor amounts and obtain a solid solution. We are also investigating the importance of vanadium, as it can exist in different electronic states, helping to form the HEMC. |