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sshade:databases:ghosst:closed_cells_for_crystal_growth [2017/10/11 06:59] – Bernard Schmitt | sshade:databases:ghosst:closed_cells_for_crystal_growth [2017/10/11 06:59] (current) – Bernard Schmitt | ||
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+ | ==== Closed cells for crystal ==== | ||
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+ | This technique allows crystals to be grown from the liquid in a closed cryogenic cell. A schematic view is shown in the Figure. | ||
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+ | Reference: {{ : | ||
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+ | **Cell description**: | ||
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+ | {{: | ||
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+ | **Picture**: | ||
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+ | Crystal growth: Crystals are grown as follows. The cell is cooled down to a temperature slightly greater than the melting point and the thermal gradient is established using heater (6). The cell is filled with gas (which condenses immediately to liquid) via the gas inlet (8). When the chamber is full of liquid, the cell is slowly cooled down via the temperature controller and heater (7). The crystal grows from the bottom to the top. The temperature is stabilized when a crystal is obtained, and it is annealed for about 12 hr. Finally, the thermal gradient is set to zero and the study can begin. |