Patent ID: 6863925

Claim:
A method for coating an article, comprising the steps of: providing the article having a surface; preparing a coating source comprising: a solid aluminum halide, a solid fluoride or a solid iodide of a modifying element as a source of the modifying element, the modifying element being selected from the group consisting of zirconium, hafnium, and yttrium, and combinations thereof, and a carrier gas; producing a coating gas from the coating source, the coating gas comprising a gaseous aluminum halide, a gaseous fluoride or a gaseous iodide of the modifying element, and the carrier gas; and contacting the coating gas to the article; and simultaneously heating the coating gas and the article to a coating temperature of at least about 1850° F. for a period of time sufficient to permit aluminum and the modifying element to coat onto the surface of the article.