C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/505 (2006.01) B22D 41/02 (2006.01)
Patent
CA 2704968
A slurry suitable for forming facecoats, facecoats formed by such a slurry, and processes using such facecoats. The slurry is formed of a particulate refractory material, an aqueous suspension containing a particulate inorganic binder, a thixotropic organic binder, a dispersant, and possibly optional constituents excluding particulate refractory materials and inorganic binders. The particulate refractory material constitutes at least about 60 weight percent of the slurry and consists essentially of yttria. The aqueous suspension containing the particulate inorganic binder constitutes at most about 35 weight percent of the facecoat slurry. The dispersant is present in the slurry in an amount sufficient to stabilize the slurry at a pH of up to about 10, and has the general formula H x[N(CH2)y OH]z, where x has a value of 0, 1 or 2, y has a value of 1 to 8, and z=3-x.
Kool Lawrence Bernard
Rutkowski Stephen Francis
Company General Electric
Craig Wilson And Company
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