所有金属都可以 冷焊但两片之间需要很大的剪切力。铟（"世界上最容易冷焊的材料*"）的独特之处在于，它可以在极低的压力下进行冷焊。 其他金属则需要额外的力量来突破表面污染物（氧、碳等），以实现焊接。这必须在会产生热量的巨大压力/摩擦力（摩擦焊）下进行。通过将温度提高到金属绝对熔化温度的 50-70% 左右，两种材料可以通过固态扩散结合在一起（扩散焊接）。
Indium, however, can do this (cold weld) through contact alone. This is assisted by the low melting temperature of indium. As for indium alloys, they can also be cold welded, but, as you add more elements to indium, you “poison” its properties. Therefore, even though these indium alloys can be cold welded, they will need some combination of heat and pressure to form joints with good integrity through cold welding. If you would like to see a picture of indium cold welding, check out my post titled, "The Result of Cold Welding Indium."
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*https://boingboing.net/2017/02/10/cold-welding-metal-together-on.html
