New shape memory alloys could build more efficient US fighter jets

US scientists at Texas A&M University have developed a novel approach to designing high-temperature shape memory alloys (HTSMAs) that could significantly enhance the efficiency and performance of US fighter jets, such as the F/A-18. These alloys enable components like jet wings to change shape—folding via electrical heating and cooling—without relying on heavy mechanical parts. This innovation promises lighter, more energy-efficient jets that can be readied faster for flight, addressing current limitations in aircraft carrier operations. The research team, led by Dr. Ibrahim Karaman and Dr. Raymundo Arroyave, combined artificial intelligence (AI) with high-throughput experimentation using a framework called Batch Bayesian Optimization (BBO). This data-driven method accelerates the discovery of optimal alloy compositions by predicting metal interactions and minimizing costly trial-and-error testing. Their approach not only speeds up materials development but also allows for tailoring alloys to specific functions, such as reducing energy loss or enhancing actuation performance in aerospace, robotics, and medical devices