Porous metal structure and method of manufacturing of said structure
AssigneeSorapec Societe de Researche et d'Applications Electrtochimiques
InventorsBernard Bugnet, Denis Doniat
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Abstract
A method of fabrication of porous metal structures as applicable to the manufacture of supports for electrodes, catalysts, filters or sound insulators. A porous structure is fabricated from a support consisting of a felt, a woven or reticulated structure in accordance with the following steps: (a) initial metallization of the support; (b) chemical and/or electrochemical metallization if so required; (c) removal of the support if necessary. The distinctive feature of the invention lies in the fact that the initial metallization step consists of metallization in vacuum.
Claims5
A method of fabrication of a metallized porous structure from an organic porous support having a three-dimensional lattice network with an open pore volume higher than 80% which defines a plurality of pores substantially in communication with each other, which comprises the step of premetallizing said support under vacuo by cathode sputtering with a metal or alloy which is a member selected from the group consisting of platinum, platinum-base alloys, nickel, chromium, iron, copper, gold, silver, tin, aluminum, titanium, zinc, brass, bronze, a ferrochromium alloy and a mixture thereof, thereby depositing on said support a continuous layer of 0.05 micron to 1 micron of said metal or alloy and then applying at least one metal layer of copper or nickel by a chemical or electrochemical process.
Dependencies are inferred from the claim text.