Indium Blog

Indium Wire and Cryogenic Sealing

  • Hermetic Sealing
  • Indium
  • Indium Corporation
  • Indium Wire

  • 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 in mating metal surfaces and creates a hermetic seal

    Most materials used for sealing that work at standard operating temperatures will crack and break at the -150C cryogenic temperatures.

    Often cryogenic, or any sealing, 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.

    Read more about indium metal in general or indium wire in particular.