Mullite ceramic compound

Details Mullite ceramic compound Mullite ceramic compound

1992-12-15

1994-03-15

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501153, 501154, 501 5, C04B 3519

Patent

active

052945766

ABSTRACT:
A mullite ceramic composition comprises mullite powder as a raw material; at least one of a rare earth element compound and an alkaline earth element compound; and at least one of a Group 6B vanadium compound, niobium compound and a tantalum compound, and the mixture is fired.

REFERENCES:
patent: H302 (1987-07-01), Nevitt et al.
patent: 4094690 (1978-06-01), Morton
patent: 4201561 (1980-05-01), Pierson et al.
patent: 4336303 (1982-06-01), Rittler
patent: 4770673 (1988-09-01), Ketcham et al.
patent: 4935390 (1990-06-01), Horiuchi et al.
patent: 4963514 (1990-10-01), Horiuchi et al.
"Fracture Toughness of Al.sub.2 O.sub.3 with an Unstabilized ZrO.sub.2 Dispensed Phase", Nils Claussen, Journal of American Ceramic Society, vol. 59, No. 1-2, Jan.-Feb. 1976, pp. 49-51.
"K.sub.IC Calculations for Some Mullite-Zirconia Composites Prepared by Reaction Sintering", de la Lastra et al., Journal of Materials Science Letters 4 (1985) 1099-1101.
"Structural Imperfections", Introduction to Ceramics, Chapter 4, pp. 125-139.
"Role of Impurities on Formation of Mullite from Kaolinite and Al.sub.2 O.sub.3 SiO.sub.2 Mixtures", Johnson et al., Ceramic Bulletin, vol. 61, No. 8 (1982) pp. 838-842.
"Glass Properties in the Yttria-Alumina-Silica System", Hyatt et al., Communications of the American Ceramic Society, 70(10) Oct. 1987, pp. C-283-C-287.
Chemical Principles, Third Edition, Dickerson et al., 1979, pp. 49-51.
"Fracture Toughness of Al.sub.2 O.sub.3 with an Unstabilized ZrO.sub.2 Dispersed Phase": Nils Claussen; Journal of the American Ceramic Society; vol. 59, No. 1-2, pp. 49-51.
"K.sub.aIC Calculations for Some Mullite-Zirconia Composites Prepared by Reaction Sintering"; Baudin de la Lasztra et al.; Journal of Materials Science Letters 4 (1985): pp. 1099-1101.
"Structural Imperfections", (chapter 4); Introduction to Ceramics (1960) Kingery.
"Chemical Principles" Third Edition, 1979 pp. 49-51 by Dickerson et al.

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