Table 1 Structural and thermodynamic parameters of the high-entropy carbide model systems.

From: Settling the matter of the role of vibrations in the stability of high-entropy carbides

R

ΔHf

EFA

VEC

a

mass of R

covalent radius

Allen electronegativity

 

(meV/atom)

(meV/atom)−1

 

(Å)

(amu)

(Å)

 

V

56

100

8.6

4.42 (1)

50.94

1.53

1.53

W

53

67

8.8

4.44 (2)

183.84

1.62

1.47

Zr

19

100

8.4

4.51 (8)

91.22

1.75

1.32

  1. Energetic distance to the convex hull (ΔHf)58, entropy-forming-ability (EFA)9, valence electron concentration (VEC), and lattice parameter a40 for the chosen high-entropy carbides \(\left({{{{{{{\rm{HfNbTaTi}}}}}}}}R\right){{{{{{{\rm{C}}}}}}}}\), and mass, covalent radii43, and Allen electronegativity42 of the atom R.
Back to article page