Aerospace Structures Technology

"Oxide-oxide CMC materials, newly developed ceramic adhesives, and design concepts developed for advanced TPS and engine hot parts are being combined in this program to create a LO compatible nozzle liner for augmented and unaugmented exhaust. LOcompatibility will be assured by provision for cooling and the use of inherently low dielectric oxide-oxide CMC's. Conceptual design and thermal and structural analysis have been performed in Phase I to show the feasibility of a bonded structure, whichwill result in significant cost savings in manufacturing and maintenance. In the remainder of Phase I, demonstration articles will be fabricated and tested in a burner rig. In Phase II, we will perform detail design of the nozzle liner panels, includingattachment hardware, culminating in a series of tests of large scale components in the AFRL thermo-acoustic facility."