| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat-resistant abradable coating and a method for making the same coating. <P>SOLUTION: The method is a method for applying abradable coatings (8, 16) profiled on a substrate (18). In the method, an abradable ceramic coating composition is applied to a metal substrate using one or more coating application techniques, and a defined ceramic pattern is produced without requiring a separate web or grid to be brazed onto the substrate. The invention is designed to withstand the higher operating temperatures encountered with the stage 1 section of 7FA+e gas turbines to allow for increased coating life without significant deterioration in structural or functional integrity. In the case of diamond-shaped patterns, the grid pattern (28) is about 0.28 in. long and 0.28 in. wide, with an overall thickness of about 0.46 in. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
