Russian and Chinese scientists have for the first time in the world created a material based on the mineral sodalite, which maintains a stable structure even under extreme temperature conditions. It can be used in space optics, laser systems, and power plants. Maxim Molokeev, a senior researcher at Siberian Federal University, revealed the details.
We are talking about the CASO material with zero thermal expansion. It does not change its size and structure in the temperature range from minus 262.15 °C (11 Kelvin) to plus 826.85 °C (893 Kelvin). This is a unique range for materials with similar properties.
The main feature of the development is its stability in extreme conditions. CASO is considered as a basis for creating ultra-stable optical devices. Possible applications include high-precision laser systems, optical frequency combs, astronomical instruments, satellite navigation systems, and new generation lithographic installations.
In the future, researchers plan to expand the range of operating conditions so that the material can work in even more extreme environments.
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