An international research team has used a "thermal metamaterial" to control the emission of radiation at high temperatures, an advance that could bring devices able to efficiently harvest waste heat from power plants and factories.
Manufacturers frequently use coatings to protect the structural stability of engines or power generators operating at high temperatures.
The gas turbines powering aircraft engines rely on ceramic coatings that ensure structural stability at high temperatures. But these coatings don’t control heat radiation, limiting the performance of the engine.
New ceramic nanotubes could prolong aircraft engine coatings by controlling hightemperature heat radiation. Idha Valeur reports.