Stabilized zirconia

Details Stabilized zirconia Stabilized zirconia

C - Chemistry, Metallurgy

04

B

261/26

C04B 35/58 (2006.01) C01G 25/02 (2006.01) C04B 35/486 (2006.01)

Patent

CA 1333913

Ceramic tetragonal zirconia is stabilized against transformation to the undesirable monoclinic form by incorporation of a mixture of stabilizers comprising controlled amounts of dysprosia and ceria, together with either yttria or titania (or both). The mixture can be prepared by wet-mixing zirconia with nitrates of the stabilizer materials, followed by drying, then calcining, e.g., at 650°C to drive off decomposition products, and then sintering at, e.g., 1465-1475°C.

599533

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