Silica-enriched protective coating for hypersonic flight vehicle

Details Silica-enriched protective coating for hypersonic flight vehicle Silica-enriched protective coating for hypersonic flight vehicle

1988-08-03

1995-07-11

Nelson, Peter A.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427209, 4273762, B05D 302

Patent

active

054319617

ABSTRACT:
Coatings which protect the skin of hypersonic flight vehicles are disclosed. Silicide coatings, such as R512E, is used to minimize catalytic recombination of dissociated species, such as atomic oxygen and atomic nitrogen, thus, decreasing thermal and oxidative degradation. Also, disclosed is a method for maintaining the silicon content of protective coatings for the skin of hypersonic flight vehicles, including the steps of applying a prehydrated, polymerized sol of tetraethylorthosilicate to a coating, and firing, to produce an integral protective coating.

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