Graded refractory cermet article

Details Graded refractory cermet article Graded refractory cermet article

C - Chemistry, Metallurgy

04

B

25/123

C04B 35/71 (2006.01) B01D 39/20 (2006.01) B22F 1/00 (2006.01) C04B 35/14 (2006.01) C04B 35/58 (2006.01) C04B 35/622 (2006.01) C04B 35/80 (2006.01) C09K 3/14 (2006.01) C22C 1/10 (2006.01) C22C 29/12 (2006.01) G01N 30/52 (2006.01)

Patent

CA 1284022

ABSTRACT OF THE DISCLOSURE A shaped, graded, cermet article comprising at least one continuous ceramic phase and at least one discontinuous metal phase, the ratio of ceramic/metal being controlled and varied over the thickness of the article. The ceramic phase preferably is microcrystalline which is the result of firing at temperatures above approximately 800°C. Refractories of this invention, in the form of fibers, powders, films, flakes, microspheres, bubbles, particles, granules and the like, are used, for example, as reinforcements in structures and composites, in filtering or adsorption applications, as catalysts, and as abrasive materials.

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