Methods for the formation of refractory metal intermetallic composites, and precursor material for protective coating and mold structure

摘要

A method for forming an article is described. The method includes the step of applying a precursor material to at least one surface (106) of a mold structure (100) for casting the article, and curing the applied precursor material. The precursor material includes facecoat-forming constituents which can be curably converted into a facecoat (104); and a protective coating-former for the article being cast. Molten material is then introduced into the mold structure (100), so as to come in contact with the facccoat (104) formed from the cured precursor material. The molten material is cooled, to form the article. The cured precursor material, which is in contact with a surface of the cast article, is then reacted with the article, to form the protective coating (126) on the surface of the article. Related mold structures (100) are also described.