Table 3:
Transformation temperatures between high temperature Mg
2
NiH
4
phase and low temperature one in different hydrogen pressure values and scan rate conditions.
LT phase to HT phase
HT phase to LT phase
Pressure
(MPa)
Scan rate
(K/min)
Temperature
(K)
Pressure
(MPa)
Scan rate
(K/min)
Temperature
(K)
4
20
516.6
4
20
504.7
10
515.3
10
506.2
5
515.0
5
507.2
2
20
516.5
2
20
503.9
10
515.6
10
505.0
5
515.5
5
506.0
1
20
516.5
1
20
504.1
10
515.7
10
504.8
5
515.6
5
505.4