Abstract: Platinum—iron alloys that contain 95-96 wt % Pt, 2-3 wt % Fe, and 20-3 wt % Ru and/or Ir, and are suitable especially for the fabrication of jewelry.

Abstract: A discharge lamp having a discharge vessel through whose wall at least one current feedthrough is guided. A discharge electrode is arranged on one end of the current feedthrough. The current feedthrough is made of at least two separate parts and at least one part is made of niobium, tantalum or alloys based on niobium and/or tantalum. The second part is made of material which is more resistant to oxidation than the first part.

Abstract: A method for producing a tubular hydrogen permeation membrane comprising: (a) adhering at least one layer containing palladium, at least one palladium alloy, platinum, or at least one platinum alloy to a first surface of a plate having such first surface and a second surface disposed opposite to the first surface, the plate being of a metal or a metal alloy containing at least one metal from a group of the Periodic System of Elements selected from the group consisting of the fourth secondary group and the fifth secondary group, to form a layered plate; and (b) reshaping the layered plate into a tubular hydrogen permeation membrane having an inside wall, so that the layer adhered to the first surface is disposed on the inside wall of the tubular hydrogen permeation membrane.