Cesium

Infrared detectors, optics, night vision goggles.

Digital twins, drones, batteries, photocells and solar panels.

Military infrared signals lamps, rocket boosters, radio bulbs

Radiation monitoring 

A cesium laser has even been invested for use in missile defense and other technological applications.

Cobalt

It’s strength, resistance and abilities to function reliable in a wide range of temperatures make it well-suited for high-capacity batteries and jets aircraft engines.

Cobalt is combined with the rare earth Samarium to create SmCo magnets, a crucial component in defense applications such us precision-guided missiles and electronic warfare systems in fighter jets which need to operate effectively in extreme conditions. 

To evade radar detection, a special magnetic material like samaium/cobalt alloy can be applied on the aircraft’s surface.

Potassium

A highly reactive alkali metal with several important uses across different industries, particularly in chemical synthesis and specialized applications like:

Potassium Compounds Production, Catalyst in Polymerization, Heat Transfer Fluids, Laboratory Reactions and more over Energy Storage and Batteries. 

Rubidium

Telecommunications: Used in network synchronization, ensuring reliable and consistent communication signals.

Defense and Aerospace: Essential for navigation systems, communication, radar, and other military applications requiring precise timing.

Space Systems: Provide accurate timing for satellite operations, including GPS and other global navigation satellite systems (GNSS).