Zirconia base ceramics

Details Zirconia base ceramics Zirconia base ceramics

1986-03-21

1989-04-11

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501105, 501152, C04B 3548

Patent

active

048206660

ABSTRACT:
The invention consists of zirconia base with high hydrothermal stability which:
(a) consists essentially of at least 40 weight % of partially stabilized zirconia of the ZrO.sub.2 -Y.sub.2 O.sub.3 -CeO.sub.2 system wherein the proportion of ZrO.sub.2, Y.sub.2 O.sub.3, and CeO.sub.2 is within the range defined by the line connecting points F, G, L, M, N and K in a ternary diagram (ZrO.sub.2, YO.sub.1.5, CeO.sub.2), the vertices of said points being given by the following molar % of ZrO.sub.2, YO.sub.1.5, and CeO.sub.2, respectively:

REFERENCES:
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patent: 4587225 (1986-05-01), Tsukuma et al.
patent: 4610967 (1986-09-01), Imanishi et al.
American Ceramic Society Bulletin, 55: 717-727 (1976).
The Ceramic Fundamental Forum held in Jan. 1985, IC 10P88.
Gupta, T. K. et al., Journal of Materials Science, 12: 2421-2426 (1977).
Sato, Tsugio et al., Zirconia Ceramics 5: 75-85 (1985).
Sato, T., et al., FC Report 5 (1987) No. 5, pp. 161-168.
Sato, T., et al., Extended Abstracts Zirconia, '86 Tokyo the 3rd International Conference on the Science and Technology of Zirconia, The Ceramic Society of Japan.
Watanabe, T., Digest of Annual Conference of the Ceramic Society of Japan, 1984, pp. 463-464.
Yogyokisotoronkai (Ceramic Fundamental Forum), 1984, 1A6, p. 10.
Yogyo Kyokai Nenkai (Annual Conference of Ceramic Association of Japan), held in May, 1984, 124P463.

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