Compositions: ceramic – Ceramic compositions – Refractory
Patent
1988-02-16
1990-02-13
Hearn, Brian E.
Compositions: ceramic
Ceramic compositions
Refractory
501105, 501153, C04B 3548
Patent
active
049007017
ABSTRACT:
A process for the production of a raw material used for the production of a zirconia sintered body is disclosed. A power containing principally zirconium compounds and a stabilizing agent is added to a solution or slurry containing at least one metal element selected from the group consisting of Mn, Fe, Co, Ni, Cu, and Zn. The stabilizing agent is Y.sub.2 O.sub.3, CaO, MgO, CeO.sub.2, a yttrium compound, calcium compound, magnesium compound or cerium compound which can produce Y.sub.2 O.sub.3, CaO, MgO, or CeO.sub.2 by thermal decomposition. The selected metal element from the group will act as a coating on the zirconia sintered body.
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patent: 3916585 (1975-11-01), Barks
patent: 4537865 (1985-08-01), Okabe et al.
patent: 4543341 (1985-09-01), Barringer et al.
patent: 4626518 (1986-12-01), Watanabe et al.
Lange, F., "Transformation Toughening", J. Material Science 17 (1982) pp. 240-246.
Kimura Nobuo
Morishita Jun-ichi
Okamura Hiromichi
Griffis Andrew
Hearn Brian E.
Nippon Soda Co. Ltd.
Oujevolk George B.
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