Point

Cations of network former, modifier and intermediates [at.-%]

Si

La

K

Zn

Nb

Ta

Zr

Y

Al

1-1

82.7

17.3

1-2

81.8

18.2

1-3

77.1

22.9

1-4

75.6

24.4

2-1

14.8

22.7

32.9

6.5

10.6

4.2

4.2

4.0

2-2

14.6

22.3

32.2

7.4

9.8

4.6

4.6

4.6

2-3

15.7

23.0

31.1

7.0

9.9

5.0

4.4

4.5