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Process for making ceramic molds having a metal oxide barrier for casting and directional solidification of superalloys

Patent ·
OSTI ID:7095173
;
At least one element of a superalloy cast into a refractory oxide-silica investment mold is oxidized to form a metal oxide barrier layer at the mold-metal interface to permit directional solidification of the cast superalloy at elevated temperatures without metal-mold reaction. 3 figures.
Assignee:
General Electric Co.
Patent Number(s):
US 4031945
OSTI ID:
7095173
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
ALUMINIUM ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CASTING
CASTING MOLDS
CERAMICS
CHALCOGENIDES
CHROMIUM ALLOYS
COBALT ALLOYS
FABRICATION
HAFNIUM ALLOYS
INTERFACES
MAGNESIUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
OXIDES
OXYGEN COMPOUNDS
RHENIUM ALLOYS
SILICON COMPOUNDS
SILICON OXIDES
TANTALUM ALLOYS
TITANIUM ALLOYS
TUNGSTEN ALLOYS
VANADIUM ALLOYS
YTTRIUM ALLOYS
ZIRCONIUM ALLOYS