SH-Synthesis of Nanostructured Materials Based on SiO2+Al+CaSiO3 with Wollastonite after Ultrasonic Treatment

Authors

  • Z. A. Mansurov The Institute of Combustion, Bogenbay Batyr Str., 172, 050012 Almaty, Kazakhstan
  • N. N. Mofa The Institute of Combustion, Bogenbay Batyr Str., 172, 050012 Almaty, Kazakhstan
  • B. S. Sadykov The Institute of Combustion, Bogenbay Batyr Str., 172, 050012 Almaty, Kazakhstan
  • A. B. Shoibekova The Institute of Combustion, Bogenbay Batyr Str., 172, 050012 Almaty, Kazakhstan

DOI:

https://doi.org/10.18321/ectj164

Abstract

This paper presents the results of a complex study of the structure and properties of wollastonite after ultrasonic treatment (UST) and its effect on the development of the process of technological combustion (SHS) of systems based on quartz, the structure and properties of synthesized composition materials. Ultrasonic treatment of wollastonite of the brand FW100 was carried out in water and 5% aqueous solutions of different alcohols and acids at 40 and 100 kHz as well as at simultaneous UST action of 40 and 100 kHz during 20-60 minutes. In the presence of different organic modifying additives during UST there takes place not only milling of wollastonite particles and erosion of their surface but also different complex structural changes on the surface of particles and their capsulation into colloidal conglomerates. All the structural changes taking place in wollastonite particles under the conditions of UST result also in the change of the chemical activity of the material, which effects the thermal characteristics of the combustion process (SH-synthesis) of the systems containing UST modified wollastonite in the charge mixture. It is stated that, when introducing wollastonite after ultrasonic treatment into SHS-charge, there takes place a more complete conversion of initial components in the combustion process. The greatest amount of corundum and nanocrystalline silicon is formed, when using wollastonite treated in water, aqueous solution of polyvinyl alcohol and acetylsalicylic acid. The synthesized samples are characterized by high stable values of strength (up to 73 MPa) and indices of electric insulation properties.

References

1. E.A. Levashov, O.V. Malochkin, A.E. Kudryashov, S.A. Glukhov, T.A. Sviridova, Non- ferrous metals. 3 (2002) 60-65.

2. Z.А. Mansurov, N.N. Mofa The role of nanostructurizedmicroadditives in controlling the process of technological combustion of metaloxide systems: synthesis ofnanocomposition ceramics // Proc. Fifth International Symposium «Nonequilibrium Processes, Plasma, Combustion, and Atmospheric Phenomena», Sochi, Russia, October 1-6, 2012, Р. 447-453.

3. O.V. Abramov, I.G. Kharbenko, Sh. Shvegla Ultrasonic treatment of materials –M.:Engineering industry. 1984,
p. 243.

4. B.G. Novitski The use of acoustic vibrations in chemical-technological processes. –M.: Chemistry, 1983, p. 191.

5. G.A. Kardashev. Physical methods for intensification of the processes of chemical technology.- M: Chemistry, 1990, p. 206.

6. Yu.A. Mamaev, N.P. Khrunina, Mining inform.- anal.bull. OB 9 (2007) 357-367.

7. V.G. Pol, R. Reisfeld, A. Gedanken, Chem. Mater. 14 (2002) 392-398.

8. G.M. Azarov, E.V. Maiorova, M.A. Oborina A.V. Belyakov, Glass and ceramics. 11 (2002) 25-27.

9. O.P. Arkhipin. Wollastonite, properties and fields of application. – Almaty, 1994. -227p.

10. V.A. Poluboyarinov, Z.A. Korotaeva, M.A. Korchagin, N.Z. Lyakhov, A.N. Cherepanov, A.P. Kalinina, Technika machinostroeniya. 6 (46) (2003) 35-42.

11. E.A. Levashov, E.S. Mishina, O.V. Malochkin, D.V. Stanski, J.J. Moor, M.I. Fadeev. The effect of nanocrystalline powders on the structure and properties of disperse-strengthened alloy TiC- 40 XH70Ю. Metallurgist. 2003, №4. p. 31-35.

12. Z.A. Mansurov, N.N. Mofa, B.S. Sadykov, T.A. Shabanova. Activation of the process of technological
combustion of oxide systems with hydromodifying additives. Proceedings of IX Intern. conf. «Promising technologies, equipment and analytical systems for material science and nanomaterials», June 27-28, 2012, Astrakhan, ASU. p. 382-392.

13. Z.A. Mansurov, N.N. Mofa. Synthesis of nanocomposition ceramics based on the system with modified wollastonite. Proceedings of VII Intern. symp.«Physics and chemistry of carbon materials.Nanoengineering». September 19-21, 2012, Almaty, p. 161-164.

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Published

2014-01-20

How to Cite

Mansurov, Z. A., Mofa, N. N., Sadykov, B. S., & Shoibekova, A. B. (2014). SH-Synthesis of Nanostructured Materials Based on SiO2+Al+CaSiO3 with Wollastonite after Ultrasonic Treatment. Eurasian Chemico-Technological Journal, 16(1), 17–25. https://doi.org/10.18321/ectj164

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