Metals question - melting bismuth onto aluminum

[carmatic]

hey guys, i am planning on buying some pieces of bismuth, as well as machining a disc of aluminum so that there is a hollow circular 'canal' which goes concentric on the disc

aluminum has a melting point of 660.32 degrees celcius, for bismuth it is 271.5 degrees celcius

i also have a very powerful blowtorch ...

is it possible to simply dump the bismuth pieces into the 'canal' , melt them and then let them fill up the 'canal' ? will molten bismuth do anything to aluminum?

most importantly, will aluminum do anything to molten bismuth which will affect the diamagnetic effect of bismuth, since it is part of a magnetic levitation setup i am trying to build

 

[Navin A S]

?This is certainly possible, but there are a few things to consider. First, the difference in melting temperatures between bismuth and aluminum means that if you filled the canal with molten bismuth first, it would cool before the aluminum even started to melt. This means that the bismuth would not be able to fill the entire length of the canal, leaving gaps which could affect the magnetic levitation setup. Secondly, you need to be careful when introducing molten bismuth to aluminum, as it can cause severe corrosion due to the reaction between the two metals. In addition, aluminum is a more thermally conductive metal than bismuth, which means that when exposed to heat it will draw away heat from the molten bismuth, causing it to cool faster than expected. Finally, you need to be aware of the fact that molten bismuth is highly corrosive and can react with many materials, including aluminum. This means that it is important to ensure that the aluminum disc is well-sealed and protected from exposure to the molten bismuth. For these reasons, it is generally not recommended to attempt to fill an aluminum disc with molten bismuth. Instead, it may be better to fill the canal with a different material, such as a ceramic or plastic, which won't react with the molten bismuth or the aluminum.