초록 ▼

The formation of an openwork structure e.g., of metal, utilizing low-temperature arc vapor deposition on a foam which is destroyed by pyrolysis is enhanced by applying a portion of the metal in a metal spray of powders in a binder which is also pyrolytically destroyed. The product has essentially th

The formation of an openwork structure e.g., of metal, utilizing low-temperature arc vapor deposition on a foam which is destroyed by pyrolysis is enhanced by applying a portion of the metal in a metal spray of powders in a binder which is also pyrolytically destroyed. The product has essentially the same properties as one made exclusively by the low-temperature arc vapor deposition method.

대표청구항 ▼

A method of fabricating an open-pore structure, comprising: (a) depositing by arc vapor deposition on and in an openwork synthetic-resin pyrolyzable support a coating of at least one material selected from the group which consists of metals, semiconductors and ceramics by juxtaposing said support wi

A method of fabricating an open-pore structure, comprising: (a) depositing by arc vapor deposition on and in an openwork synthetic-resin pyrolyzable support a coating of at least one material selected from the group which consists of metals, semiconductors and ceramics by juxtaposing said support with a pair of electrodes at least one of which is composed of at least one element of said material, advancing said electrodes into contact to strike an electric arc between said electrodes and evaporate said element from said one of said electrodes and effect deposition of said material on said support, and evacuating a space in which said support is juxtaposed with such electrodes prior to or during deposition of said coating, whereby a fraction of a total amount of said material adapted to ultimately form said open-pore structure is deposited in the form of said coating; (b) spraying onto at least one of said support and said coating in at least one spray-deposition operation a quantity of said material sufficient to make up the remainder of said total amount; (c) pyrolyzing said support after at least one of step (a) and step (b) to form an openwork skeleton consisting essentially of said material; and (d) sintering said skeleton into a coherent body constituting said open-pore structure.