Method for forming a cermet porous ceramic compact and heating t

Coating processes – With post-treatment of coating or coating material – Movement of work treats coating

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427357, 4273763, 4273855, 4273981, 164 97, 164 98, B05D 312

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active

051962381

ABSTRACT:
A method of infiltrating a porous ceramic compact with a molten metal to form a cermet is disclosed. A solid-phase metal is disposed on a surface of a porous ceramic compact. The surface of the porous ceramic compact is at an angle to the horizontal which is sufficient to allow molten metal formed from the solid-phase metal to rupture an oxide layer at least partially supporting the molten metal. The solid-phase metal is heated to a temperature sufficient to melt the solid-phase metal and to allow the molten metal formed to rupture the oxide layer. The molten metal flows through an opening in the metal oxide layer formed by the rupture and infiltrates the porous ceramic compact. The porous ceramic compact, containing the molten metal, is then cooled to a temperature whereby the molten metal solidifies, thereby forming a cermet.

REFERENCES:
patent: 4834938 (1989-05-01), Pyzik et al.
patent: 4935055 (1990-06-01), Aghajorinn et al.
patent: 5039633 (1991-08-01), Pyzik et al.

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