| abstract |
The present disclosure provides a method for coating a composite structure, comprising forming a first slurry by combining a glass frit comprising a first phosphate glass composition with a first carrier fluid comprising an acid aluminum phosphate, wherein the ratio of aluminum to phosphoric acid is between 1 to 2 and 1 to 3, applying the first slurry on a surface of the composite structure to form a base layer, and heating the composite structure to a temperature sufficient to adhere the base layer to the composite structure. |