| 摘要 |
Embodiments disclosed herein include compositions that serve, among other things, the dual function of a thermal barrier and an RF absorber. The compositions can be applied as a single layer to an aircraft engine component, thus reducing the weight of the aircraft and eliminating an extra coating step in the manufacturing process. The coating materials are designed to protect the metal underneath from the high temperatures generated during engine operation, and also to absorb or scatter radiation which may incumbent on the metal during operation. In some implementations, the compositions comprise a two phase mixture of perovskite and magnetoplumbite. |
| 主权项 |
1. A coating composition comprising a two phase mixture of LnAl11(1-x-y)FexMyO18 and LnAl1-x-yFexMyO3, x and y both being greater than 0, x being less than 1, and y being less than or equal to 0.5, the coating composition providing the dual function of a thermal barrier and an RF absorber, Ln being selected from the group consisting of La, Pr, Nd, Sm, and combinations thereof, and M being selected from the group consisting of Co, Ni, Cu, and combinations thereof. |
