Thesis - Oztek_Muzaffer_T_200508_MA

3.5
3.0
2.5
Wt. % H desorbed
2.0
1.5
1.0
0.5
0.0
-0.5
0 1000 2000 3000 4000 5000 6000 7000
corrected time (s)
Figure 12: Percent hydrogen desorbed for dehydriding of Mg 2 Ni.
Ball milled Mg 2 Ni reacted at lower temperatures and H 2 pressures to react than
previously reported values [23]. The amount of H absorbed, 3.04 %, (Mg 2 NiH 3.23 ) was
lower than the reported value of 3.60 % (Mg 2 NiH 4 ). The uptake reaction was complete in
about 15 minutes.
3.1.2. VTiNi
V, Ti and Ni were alloyed using the Spex8000 Mixer Mill. Since the starting
materials were pure elements, a relatively long milling time, 90 minutes, was used. The
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