Figure 8
Results of the pressure test performed at 74 K and 204 K with blue squares and red dots, respectively. Pressure in the cell in GPa as a function of the pressure in the membrane in bars. The first determined using the ruby fluorescence technique, the second regulated using a GE Druck PACE5000 gas controller. The cell was prepared using 4:1 methanol:ethanol as PTM and it was closed initially at 1 GPa. The test was performed in the first place at 74 K reaching a maximum pressure close to 20 GPa. Then the pressure in the membrane was released and the test was repeated at 204 K. |