Hiroshi Saeki - Optical window sealed with indium for ultrahigh vacuum

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  Publication Details (including relevant citation   information):

  Vacuum 39(6), 563 - 564 (1989).

  Keywords: Optical window; Indium seal; Ultrahigh vacuum; Aluminum   alloys; He-Ne Laser


  A bakeable (120°C) optical window sealed with indium for   ultrahigh vacuum is described. The surfaces to be in contact with   the seal are coated with Cr (0.05 μm) and Au (0.2 μm) using an   ion plating method. Since the surfaces are sealed with an indium   wire using a hot pressing method (150°C, 85 kg cm−2),   the newly developed optical window is free of thermal distortion.

  Address (URL): http://www.sciencedirect.com/science/article/pii/0042207X89906349