Rocket engine structure microsensors printed with colloidal platinum nanoink using 3D aerosol-jet technology

This research investigates the use of aerosol-jet printing to manufacture microsized strain and creep sensors onto the surface of a complex Inconel 718 nozzle. The innovative manufacturing process generates an aerosol-jet printed sensing platform that integrates printed electronics, allowing for continuous condition monitoring. The development of a high-temperature platinum nano particle conductive ink capable of withstanding temperatures up to 1290 °C is a key breakthrough. The microprinted creep sensors are rigorously tested, further enhancing the printing process. The manufacturing process developed during this research is a game-changer, with endless applications in high-temperature sensor technology. It offers a solution for continuous condition monitoring in rocket engine structures, greatly enhancing safety and performance.