Casting of reactive metals into ceramic molds

Details Casting of reactive metals into ceramic molds Casting of reactive metals into ceramic molds

1986-11-24

1988-11-29

Morris, Theodore

Metal founding

Process

Shaping a forming surface

106 383, 106 389, 164519, 164 35, 428697, B22C 102

Patent

active

047874392

ABSTRACT:
The invention concerns a composition for making a coating consisting essentially of a refractory material selected from the group consisting of yttrium oxide, zirconium oxide, fused yttrium oxide, fused zirconium oxide, fused stabilized zirconium oxide, and fused mixtures of zirconium oxide and yttrium oxide; and a sufficient amount of an yttria sol binder. The composition can be used to prepare refractory materials, casting and core molds.

REFERENCES:
patent: 3476691 (1969-11-01), Smith et al.
patent: 3537949 (1970-11-01), Brown et al.
patent: 4040845 (1977-08-01), Richerson et al.
patent: 4240828 (1980-12-01), Huseby
patent: 4504591 (1985-03-01), Feagin
"Dissolution of Single and Mixed Oxides of Y,La,Al and Mg in Caustic" 838 American Ceramic Society Bulletin vol. 61 (1982) Feb., No. 2, Columbus, Ohio, U.S.A. pp. 221-227.

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