Architected high temperature alloy truss cores

Core materials enable lightweight sandwich structure designs for many aerospace applications. We have demonstrated hollow metal truss cores with improved performance over state-of-the-art core materials including Nomex and Aluminum honeycomb. Existing core materials are especially limited at elevated temperatures. A new approach to producing high temperature capable metallic hollow truss cores has been developed. We present a production route as well as mechanical test results on three different high temperature alloy truss materials. These include a Monel alloy, Ni super alloy, and a new Co-Re ultra-high temperature super alloy. The process is both scalable and alloy agnostic providing an economical approach with a rapid path to qualification.