Table 3:
The number of BB (
𝑛
B
B
); the pre-exponential factor (
𝐷
0
) at 560 K in obtained samples.
Systems
𝑛
B
B
(
×
10
−3
)
𝐷
0
(m
2
/s)
Samples A
8.39
9
.
3
×
1
0
−6
Samples B
1.34
6
.
1
×
1
0
−7
Samples C
0.31
1
.
1
×
1
0
−7
c
Co
89
Zr
11
—
8
.
0
×
1
0
−7
d
Co
79
Nb
14
B
7
—
3
.
3
×
1
0
−6
c
,
d
E
xperimental data in [
25
,
26
].