“Scientific Production Enterprise “Technologika”, Ltd

L. M. Katznelson, General Director, e-mail: lk783395@gmail.com

Seversk Technological Institute of National Research Nuclear University “MEPhI”

B. M. Kerbel, Head of Information and Analytical Department, Professor

The article presents the concept of continuous solid-phase synthesis of oxide materials and considers the experimental results of the developed technology of continuous solid-phase synthesis of ultra- and nano powders of oxide materials. On the example of piezoelectric ceramics there is shown the possibility to improve its quality by regulating powder granulometric composition directly during their synthesis and subsequent highspeed sintering. Controlling the oxide material dispersion while sintering eliminates the grinding process from the conventional ceramics technology, which, in turn, eliminates attendant problems; this is very important for pollution sensitive materials. Self-regulation of the granulometric composition of powders (pellet self-assembly) during synthesis eliminates the problems with molding ultra- and nanoscale powders, which itself is a rather difficult technological problem. The technology of continuous solid-phase synthesis enables synthesizing almost any oxide materials: ferrites, semiconductors, posistors, piezoelectrics, phosphors, high-temperature superconductors, construction and capacitor materials. This technology can be used for synthesizing uranium oxides and alloy elements used as additives for high-quality ceramic nuclear fuel. The technology is environmentally friendly, non-laborious, and easily integratable into any real ceramics production chain. It is intended for any tonnage production and material science research centres.

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