Table 3: Transformation temperatures between high temperature Mg2NiH4 phase and low temperature one in different hydrogen pressure values and scan rate conditions.

LT phase to HT phaseHT phase to LT phase
Pressure
(MPa)
Scan rate
(K/min)
Temperature
(K)
Pressure
(MPa)
Scan rate
(K/min)
Temperature
(K)

420516.6 420504.7
10515.3 10506.2
5515.0 5507.2

220516.5 220503.9
10515.6 10505.0
5515.5 5506.0

120516.5 120504.1
10515.7 10504.8
5515.6 5505.4