External friction in the process of SHS-compaction

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Abstract

On the basis of previously developed rheodynamic models of high-temperature SHS‑compaction, a theoretical analysis of the process of backward pressing with the active action of external friction force was carried out. It is shown that in this version of extrusion external friction is a useful technological effect, which allows to obtain a uniform distribution of density over the volume of the pressing material. Analytical relationships have been obtained for calculating the characteristic pressing time and stress distribution.

About the authors

A. M. Stolin

Merzhanov Institute of Structural Macrokinetics and Materials Science

Author for correspondence.
Email: amstolin@ism.ac.ru
Russian Federation, 142432, Moscow Region, Chernogolovka, Academician Osypian street, 8

L. S. Stelmakh

Merzhanov Institute of Structural Macrokinetics and Materials Science

Email: amstolin@ism.ac.ru
Russian Federation, 142432, Moscow Region, Chernogolovka, Academician Osypian street, 8

S. V. Karpov

Tambov State Technical University

Email: amstolin@ism.ac.ru
Russian Federation, 106, Sovetskya street, Tambov, 392000

M. I. Alymov

Merzhanov Institute of Structural Macrokinetics and Materials Science

Email: amstolin@ism.ac.ru

Сorresponding Member of the Russian Academy of Sciences

Russian Federation, 142432, Moscow Region, Chernogolovka, Academician Osypian street, 8

References

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  4. Stolin A. M., Bazhin P. M., Konstantinov A. S., Alymov M. I. Production of Large Compact Plates from Ceramic Powder Materials by Unconfined SHS Compaction // Doklady Chemistry. 2018. V. 480. № 2. P. 136-138. doi: 10.1134/S0012500818060083 Web of Science and Scopus.
  5. Stolin A. M., Stel’makh L.S. Features of Сompaction Kinetics for Powder Materials under Nonisothermal Conditions. I. Compaction Kinetics in Regular and Fiber Regimes // Powder Metallurgy and Metal Ceramics. 2001. V. 40. № 11/12. P. 556-561.
  6. Стельмах Л. С., Столин А. М. Тепловые режимы уплотнения при горении порошкового материала // ДАН. 2000. T. 373. № 2. C. 206-209.
  7. Stolin A. M., Stel’makh L. S. Mathematical Modeling of SHS Compaction / Extrusion: An Autoreview // J. SHS. 2008. V. 13. № 1. P. 53.
  8. Patlazhan S. A., Kravchenko I. V. Influence of Interfacial Slipon Mechanical Adhesion of Immiscible Polymers // J. Adhesion Sci. and Technol. 2011. V. 25. P. 1425-1434.
  9. Худяев С. И. Пороговые явления в нелинейных уравнениях. М.: Физматлит, 2003. 272 с.

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