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Solidification of Gallium Films

Vermeulen, P.A. (2012) Solidification of Gallium Films. Bachelor's Thesis, Physics.

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This research project focused on the solidification of Gallium films. The project consisted of two major parts: The first was the design of an experimental setup that was capable of freezing a Gallium layer by undercooling it, and capture and analyze the growth rate of Gallium crystals. An experimental setup was successfully designed that could induce controlled growth of Gallium crystals from a cold source. The growth speed of these crystals was analyzed using a camera and a Matlab image processing script. A thermocouple was used to investigate the temperature gradients applied across the layer. In the second part, several measurements were performed with this setup. The growth rate of these Gallium crystals was proven to be controllable by varying the layer thickness and level of undercooling applied to the layer. From our measurements we conclude that an increased temperature gradient across a Gallium layer increases the crystal growth rate in this layer.

Item Type: Thesis (Bachelor's Thesis)
Degree programme: Physics
Thesis type: Bachelor's Thesis
Language: English
Date Deposited: 15 Feb 2018 07:49
Last Modified: 15 Feb 2018 07:49

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