Ceramic article

Details Ceramic article Ceramic article

1997-10-07

1998-08-25

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501104, 501106, 428701, 428702, C04B 35488

Patent

active

057983089

ABSTRACT:
The present invention is a sintered ceramic article having an elemental composition including Zr, O, and at least one element selected from the group consisting of Mg, Ca, Y, Sc, Ce and rare earth elements. The ceramic article includes a core and a casing. The casing is exterior to and continuous with the core. The core is a mass of sintered particles having an essentially tetragonal zirconia crystalline structure and the casing is a mass of sintered particles having a mixture of monoclinic zirconia crystalline structure and zircon crystalline structure.

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patent: 5336282 (1994-08-01), Ghosh et al.
patent: 5358913 (1994-10-01), Chatterjee et al.
patent: 5674794 (1997-10-01), Chatterjee et al.
patent: 5677072 (1997-10-01), Chatterjee etal.
patent: 5683481 (1997-11-01), Chatterjee et al.

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