News

Specialists of Obninisk Research and Production Enterprise “Technologiya” named after A.G. Romashin developed a new composite ceramic material based on zirconium dioxide. The material is able to withstand thermal shock up to 20,000°C and can be used in aggressive chemical environments. The created heat-resistant ceramics are designed for the production of products that are operated at high temperatures.

Scientists of “Technologiya” Enterprise started to develop a new material in 2019 in the interests of the nuclear industry for import substitution. After analyzing the experience of using various ceramic materials for the production of goods operating in an aggressive environment, the specialists decided to use zirconium dioxide as a basic material of the composition, which has a unique set of properties: high strength and hardness, heat resistance and ionic conductivity, biological inertia and chemical resistance in metal melts. In order to achieve the desired characteristics, such as high temperature resistance and chemical resistance, the zirconium dioxide was synthesized from nanocrystalline powders with additives of magnesium and calcium oxides. Thus, the newly designed composition has the properties of all the elements included in it.

The new composite ceramic material is created from domestic raw materials and is intended for the production of products that are subjected to thermal shock at operating temperatures up to 2,000°C. The material can be used for producing flame-proof burners, metal melts dispersion nozzles, dispensers for continuous casting of steels, crucibles for induction melting of metals and alloys. A pilot batch of consumable parts for metal powder production plants for the production of high-precision products in the aerospace industry and nuclear power industry by the additive method has already been made from a composition based on zirconium dioxide, which has successfully passed the first tests.