C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/46 (2006.01) C04B 35/486 (2006.01)
Patent
CA 2128480
ABSTRACT OF THE DISCLOSURE WATER-RESISTANT CERAMIC ARTICLES The invention claims the use of a ceramic article, at least the surface of which is formed from a zirconia ceramic, in an environment where contact with water above 60°C occurs. The zirconia ceramic is formed by mixing a firstparticulate zirconia composite and a second particulate zirconia composite, the first composite containing 1 to 4 molar per cent yttria, the second composite containing 4 to 20 molar per cent yttria and the yttria content of the two composites differing by at least 2 molar per cent, shaping said mixture to produce a ceramic green body and sintering said green body at a temperature of at least 1200°C.
Dransfield Graham P.
Jones Anthony G.
Lawson Simon
Sim & Mcburney
Tioxide Group Services Limited
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