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Indium Wire and Cryogenic Sealing

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.