The high temperature ceramic rotors, developped by Kyocera Industrial Ceramics, have been sent to an unnamed national research lab for testing. They will be applied in engine development of a three-kilowatt electrical generator.
The rotors, now in a development state, could provide a competive alternative to the internal combustion engine. They are very small, about 2,5 inches in diameter and made of silicon nitride. They will be used in a new gas turbine engine. Gas turbines have better fuel effinciency and fewer emissions. Also ceramic components operate with much higher temperature than metal components.
Over the next ten years portable three-kilowatt turbogenerators are expected to be used in land and air applications.