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A process for sealing a ceramic filter by infiltrating a metal into an end of the filter. The process includes the steps of contacting the end of a porous ceramic filter with a molten metal, whereby the metal enters into the ceramic matrix to substantially fill the void space. The ceramic filter is

A process for sealing a ceramic filter by infiltrating a metal into an end of the filter. The process includes the steps of contacting the end of a porous ceramic filter with a molten metal, whereby the metal enters into the ceramic matrix to substantially fill the void space. The ceramic filter is cooled to form a filter having a ceramic-metal composite portion. The present invention also provides a filter having an infiltrated metal seal. Methods for joining infiltrated ends are also provided.

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[ What is claimed is:] [1.]1. A method for sealing an end of a ceramic filter element, comprising the steps of:(a) providing a porous ceramic filter element comprising a first end portion and a second end portion and comprising filtering channels therethrough wherein said filter element comprises a

[ What is claimed is:] [1.]1. A method for sealing an end of a ceramic filter element, comprising the steps of:(a) providing a porous ceramic filter element comprising a first end portion and a second end portion and comprising filtering channels therethrough wherein said filter element comprises a substantially continuous network of open porosity;(b) contacting a portion of said first end of said filter element with a molten metal comprising from about 1.5 weight percent to about 10 weight percent oxygen, to infiltrate said metal into the continuous network of open porosity in said first end portion of said filter element by capillary action without substantially infiltrating said filtering channels;(c) cooling said infiltrated portion to form a filter element having an internally sealed end comprising a ceramic-metal composite portion.