| 摘要 |
<p>A germanium component (1) is bonded to a second component (3) of metal, or metal-surfaced ceramic, by a braze composed of a first metal (6), which is constituted by or deposited on the surface of the second component, one or two additional metals (7,8) deposited on or inserted between the component surfaces, and germanium derived from the component, the additional metal or metals and germanium forming an alloy, preferably an eutectic, which interacts with the first metal to form a molten braze at a temperature below the melting points of the components. Specifically, for the manufacture of an infra-red window for a laser, a germanium window is bonded to a Nilo K or Kovar support by coating the latter with nickel or cobalt, introducing silver or copper either as coatings on, or as a shim inserted between, the mating surfaces, and heating the assembly to 680-690 DEG C. The braze withstands temperatures used for outgassing the device.</p> |
