High temperature stable amorphous silica-rich aluminosilicates
AssigneeApplied Thin Films, Inc.
InventorsSankar SAMBASIVAN, Vikram Sharad KAUL, Francis Richard CHAPMAN, Jeffrey William DONELAN
Life of this patent
Estimating the term…
Abstract
A solid amorphous silica-rich aluminosilicate composition is stable at temperatures up to 1500° C. or above and is capable of sustained use as a coating under high to extreme temperature conditions.
Claims21
1-33. (canceled)
A method for producing a stable, silica-rich aluminosilicate amorphous coating material on a substrate comprising heating a mixture primarily comprising oxidic species of aluminum and phosphorous and a silicon-containing compound to a temperature at which the mixture melts and thereafter the phosphorous containing species is substantially eliminated as a vapor whereby with the loss of the phosphorous containing species, the remaining aluminosilicate composition solidifies to become the amorphous coating material.
Dependencies are inferred from the claim text.