Ceramic materials of low-temperature sintering from natural and technogenic rocks of the Tuva Republic

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Abstract

Abroad, they are actively engaged in “cold” sintering of materials, including ceramic, which is a mechanically and thermally conditioned mass transfer process that allows for low-temperature integration of various materials. The paper presents the results of research on low-temperature sintering and optimization of firing regimes for ceramic materials by introducing a salt complex with a liquidus temperature of 825оC into a charge based on natural and man-made rocks of the Republic of Tyva. The optimal concentrations of salt-containing additives in the ceramic mass, which affect the roasting properties of the resulting materials, have been determined. It was found that the introduction of a complex of salts into the ceramic charge promotes earlier sintering of the shard and the production of high-quality wall ceramics at lower temperatures, which leads to a reduction in energy costs during firing of products.

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About the authors

G. I. Storozhenko

Novosibirsk State University of Architecture and Civil Engineering (Sibstrin)

Author for correspondence.
Email: baskey_ltd@mail.ru

Doctor of Sciences (Engineering) Docent

Russian Federation, 113, Leningradskaya Street, Novosibirsk, 630008

T. V. Sapelkina

Tuva Institute of Integrated Development of Natural Resources, Siberian Branch of the Russian Academy of Sciences

Email: sapelkina_geotom@mail.ru

Research Assistant 

Russian Federation, 117A, Internatsionalnaya Street, Kyzyl, Tyva Republic, 667007

Т. Е. Shoeva

Novosibirsk State University of Architecture and Civil Engineering (Sibstrin)

Email: shoeva_geotom@mail.ru

Candidate of Sciences (Engineering) 

Russian Federation, 113, Leningradskaya Street, Novosibirsk, 630008

I. M. Sebelev

Novosibirsk State University of Architecture and Civil Engineering (Sibstrin)

Email: i.sebelev@sibstrin.ru

Doctor of Sciences (Engineering), Docent 

Russian Federation, 113, Leningradskaya Street, Novosibirsk, 630008

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2. Fig. 1. Fusibility diagram of a salt system NaCl–K2SO4–CaSO4

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3. Fig. 2. X-ray diffraction pattern of: a – Sukpak clay; b – Ust-Elegest mudstone

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