Table 1 Composition of experimental samples in atomic percent, calculated from EDS analysis of metal content and CHNS chemical analysis of carbon and nitrogen content. Metals are expected to be in equiatomic proportion.

From: Bulk high-entropy nitrides and carbonitrides

Atomic %

C

N

Cr

Hf

Nb

Ta

Ti

V

Zr

Mo

W

C + N subtotal

Metals subtotal

HEN #1

9.9

36.7

10.9

10.8

10.5

10.6

10.8

46.5

53.6

HEN #2

4.0

41.5

12.0

11.0

10.5

10.4

10.7

45.4

54.6

HEN #3

5.9

41.4

6.4

12.0

11.8

10.8

11.6

47.3

52.6

HEN #4

6.5

41.2

4.0

11.8

12.2

12.6

11.6

47.7

52.2

HEN #5

6.0

41.9

4.7

12.1

11.3

12.2

11.7

47.9

52.0

HECN #1

30.0

17.6

10.0

10.9

10.4

10.5

10.7

47.5

52.5

HECN #2

26.4

18.5

10.3

11.1

10.7

11.7

11.4

44.9

55.2

HECN #3

27.8

19.8

5.4

12.2

11.8

11.7

11.3

47.6

52.4

HECN #4

27.7

19.8

2.7

12.4

12.9

0

12.2

12.4

47.4

52.6

HECN #5

29.1

18.0

3.7

12.2

12.1

12.5

12.4

47.1

52.9

HECN #6

32.1

7.4

12.1

12.1

0.0

11.8

12.3

12.2

39.5

60.5