Ceramic composition

C - Chemistry – Metallurgy – 04 – B

Patent

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C04B 35/10 (2006.01)

Patent

CA 1189094

CERAMIC COMPOSITION ABSTRACT OF THE DISCLOSURE Improved ceramic compositions useful for cutting tools and the like are described. They are composed of an essentially homogeneous admixture of sintered powders of an aluminum oxide base material with other refractories including zirconium oxide, titanium oxide, hafnium oxide, titanium nitride, zirconium nitride, and tungsten or molybdenum carbide. In addition to their common and improved properties of hardness and strength, many of these compositions may be made by simple cold-pressing and sintering procedures. This avoids the known drawbacks of con- ventional hot press production.

407004

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