Scientists from Tomsk and Novosibirsk have developed a new ceramic material with unique strength and heat-shielding properties, which is synthesized in just a few seconds. It will become the basis for thermal barrier coatings for aircraft gas turbine engines, the press service of the Institute of Nuclear Physics SB RAS reported.
The researchers obtained samples containing rare earth oxides — compounds including oxygen and refractory rare earth elements. These substances are practically insoluble in water and give the material outstanding strength and heat resistance characteristics.
Previously, the synthesis of such coatings took tens of hours, but Russian scientists proposed a new method — heating the powder with fast electrons in an air environment using an industrial accelerator. As a result, they were able to quickly turn a mixture of various compositions into a monolithic material with a single chemical structure.
The electron accelerator of the INP SB RAS allows the synthesis process to be carried out in seconds, and its high efficiency (about 80%) reduces energy consumption by several orders of magnitude. This discovery will significantly speed up and reduce the cost of producing thermal barrier coatings for aircraft engines.
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