Why can't copper and aluminum coexist in a water-cooled computer?
Anyone who has used a water-cooled computer knows that copper and aluminum should be avoided in the water-cooled circulation system. The fear is that the two produce galvanic battery reaction, will corrode the cold head or cold row. So why does this happen? First we need to figure out what a galvanic reaction is, and in a galvanic cell, the chemical reaction that happens is REDOX. There are electrons flowing out of the electrode where the oxidation reaction takes place, and the substance losing electrons is the reducing agent. Electrons flow through the negative electrode of the galvanic cell through the wire to the positive electrode, where the oxidant gets electrons and a reduction reaction occurs. Galvanic cells convert chemical energy into electrical energy through chemical reactions. There are four indispensable conditions for the formation of a galvanic cell: 1. Two kinds of metals with different activity make up the electrode. 2. Electrolyte solutio