Indium wire is ideal for many sealing applications, especially cryogenic sealing. There are two main advantages to using indium wire in your cryogenic sealing applications:
- It remains malleable at cryogenic temperatures
- It is soft and pliable so it fills imperfections inmating metal surfacesand creates a hermetic seal
Most materials used for sealingthat workat standard operating temperatures will crack and break at the -150C cryogenic temperatures.
Often cryogenic, or anysealing, applications require that a seal be made inside a channel or other feature that isn't always flat and smooth.To illustrate how this works with indium,I used a piece of indium foil to show how it conforms to the surface of this penny.
Readmore about indium metal in generalor indium wire in particular.