Scientists from the Department of Chemistry at the Lobachevsky University of Nizhny Novgorod (NNSU), the Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences and the Institute of Applied Physics of the Russian Academy of Sciences have developed a transparent and ultra-strong material for Russian cosmonautics, which has no analogues in the domestic industry. This was reported in UNN.
“To date, the material obtained has no analogues in the Russian industry. Transparency in the infrared range and high strength of the composite oxides of magnesium and yttrium (MgO-Y2O3) opens up new opportunities for the production of aircraft and spacecraft operating under intense thermal and mechanical loads“, the message says.
The author of the study, head of the Laboratory of Optical Ceramic Materials of the Faculty of Chemistry of the UNN, Dmitry Permin, said that for the first time scientists used the method of microwave sintering to obtain transparent composite ceramics in the IR spectrum. The technology provides ultra-fast heating at a rate of more than 100 ° C per minute, and the absence of heating elements allows you to get clean materials and change the sintering atmosphere.
The advantages of microwave heating will allow scaling the production technology when obtaining large-sized products. “The complexity of obtaining IR-transparent composites is associated with the peculiarities of their microstructure. The grains that make up the composite should be 10-20 times smaller than the wavelength of IR radiation. The scientists obtained the necessary ratios on high-tech microwave generators of the Institute of Applied Physics of the Russian Academy of Sciences“, – the press service quotes Dmitry Permin.
Scientists from the Faculty of Chemistry of UNN, the Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences and the Institute of Applied Physics of the Russian Academy of Sciences worked on the development. The research was carried out with the support of the Russian Science Foundation.