Synthesis of open-cell metal foams by templated directed vapor deposition

  title={Synthesis of open-cell metal foams by templated directed vapor deposition},
  author={Douglas T. Queheillalt and Derek D. Hass and David J. Sypeck and Haydn N. G. Wadley},
  journal={Journal of Materials Research},
Low-density, open-cell nickel base superalloy foams have been synthesized by a high-rate, electron beam-directed vapor deposition process and their mechanical properties evaluated. The deposition process uses an open-cell polymer foam template upon which is deposited a metal alloy coating. The electron beam evaporated flux was entrained in a rarefied transonic gas jet and propagated along the flow stream lines through the polymer structure. After vapor deposition, the polymer template was… Expand

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