Schwabe has developed a new generation of heavy-duty glass-ceramic for astronomical and navigational instruments

The specialists of the Holding "Schwabe" State Corporation Rostec created a new heat-resistant and uniform glass crystalline material, which is superior to known Astrositall. In the year it is planned to produce in volume up to 100 tons. Designed in 2014. Holding company "Schwabe" - JSC "Lytkarino Optical Glass Factory" (JSC LZOS) new glass crystalline material (SCM) Sitall-N has passed all tests and is ready for use in production. The first devices based on it will be in the IV quarter of 2018.
Sitall-N can be used in the manufacture of instruments for astronomy, navigation, medical and scientific research, and consumer goods.

"The new material will allow us to make more accurate and high-quality world-class devices, - said Deputy General Director of JSC" Schwabe "R & D and innovation development Sergey Popov. - To implement the development in production process of advanced technology will be installed by 2018. Together with the product quality and increase the competitiveness of Russian glass-ceramic material in the international arena. Clarify that Sitall-LH is not a substitute Astrositall. The compositions to be used in various fields of science and technology".

The novelty is superior used in space instrumentation Astrositall on svilnosti, cystic and uniformity. It has higher quality characteristics, minimal variation value and the temperature coefficient of linear expansion (coefficient of linear expansion) over a wide temperature range, and minimal change in linear dimensions. Thermal resistance Sitall-N along with strength provides precision devices made on its basis.

Technically more advanced SCM exceeds its Japanese counterpart - glass ceramic Clearceram-Z. New material changes TFLE value with changes in temperature from -60 ° C to + 200 ° C in a narrow range, as well as deprived of the transition point TFLE values 0 through the operating temperature range of - it makes it much more thermally stable.