Fire refractory ceramic molded piece, use thereof and...

Details Fire refractory ceramic molded piece, use thereof and... Fire refractory ceramic molded piece, use thereof and...

2006-01-03

2006-01-03

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Refractory

C501S104000, C501S105000, C501S117000

Reexamination Certificate

active

06982233

ABSTRACT:
The invention relates to a fired refractory ceramic molded piece with a spinel matrix based on (Mg)2+(Al, Cr)23+O4, in which coarser particles based on chromium corundum and/or corundum and coarser particles based on ZrO2are present.

REFERENCES:
patent: 4348485 (1982-09-01), Oohasi et al.
patent: 6261983 (2001-07-01), Gruver
patent: 6274525 (2001-08-01), Zborowski et al.
patent: 197 27 917 (1999-01-01), None
patent: 0 210 457 (1987-02-01), None
patent: 8-34666 (1996-02-01), None
patent: WO 99 01399 (1999-01-01), None
Levy, D., et al.: “Chromium Crystal Chemistry Mullite-Spinel Refractory Ceramics,” Materials Research Bulletin, Elsevier Science Publishing, New York, U.S., Mar. 15, 1999, pp. 711-720, vol. 35, No. 5.
Schulle, Wolfgang: “Feuerfeste Werkstoff,” 1990, pp. 288, 289.

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