The experiment worked perfectly for us. Even after 120 rounds the system still works like the first round.
The materials that we have tested were: Carbon Steel, Stainless Steel, Copper, and Aluminum
These materials were used because of their varying different properties and their cost
The data showed that high conductivity can mask the affects of ablation. Copper remained constant on average over the ten rounds, but experience the largest amount of damage.
The data showed that the specific heat capacity of the metals, or the metals ability to move heat that is heating one end of the metal to the other end for instance. Aluminum gained mass during this experiment by taking the molten aluminum foil being vaporized and basically welding itself to the aluminum rods. The aluminum was able to cool the aluminum foil being vaporized quickly to prevent damage to itself. This actually caused bubbles to be formed in the acrylic encasing the rods.
The data does not support the use of Cu-W, copper-tungsten alloys for use in applications involving metals that are in contact with plasma. This is because tungsten has a low specific heat capacity, meaning once the metal reaches its melting point, there is no place for the heat to go. That excess heat will eventually melt the alloy.
The data supports the use of a high conductive and high specific heat capacity alloy will be able to resist the affects of ablation and also keep its performance.
The experiment does show the need for further research. Economically feasible and energy efficient cooling systems need to be researched, and there is research being conducted currently by institutions on this subject. The material itself will be able to greatly help mitigate damage from high powered applications, but will not be enough to stop the amount of heat being produced from burning it. The material itself is still highly important in being able to transfer the heat to a cooling system connected to it.
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