Skip to main content
SpringerLink
Log in

Investigation of thermal transformations in aluminium hydroxides subjected to mechanical treatment

  • Published:
Journal of thermal analysis Aims and scope Submit manuscript

Abstract

The influence of the mechanical activation of hydrargillite Al(OH)3 on the mechanism of its' thermal dehydration and crystallization in response to treatment with steam was studied. The effects of grinding on the texture, structure and thermal behavior were examined by means of XRD, DTA, TG, DSC, IR spectroscopy and SEM. The mechanical activation of hydrargillite leads to formation of the amorphous state, and also results in a change in the thermal dehydration mechanism in the dynamic mode in the air, with a decrease in the ΔH value of dehydration. The transition of hydrargillite into corundum on treatment with steam is facilitated after mechanical activation. The activated state of hydrargillite was found to be unstable and its reactivity decreases as time elapses.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. V. V. Boldyrev and V. B. Aleksandrov, Dokl. Akad. Nauk SSSR, 317 (1991) 663.

    Google Scholar 

  2. U. Steinike, U. Kretzschmar, I. Ebert and H.-P. Henning, Reactivity of Solids, 4 (1987) 1.

    Article  Google Scholar 

  3. U. Bollman, S. Engels and K. Haupt, Zeitschrift fur Chemie, 25 (1985) 273.

    Google Scholar 

  4. S. M. Paramzin, Yu. D. Pankratiev and E. A,. Paukshtis, O. P. Krivoruchko, B. P. Zolotovskij and R. A. Buynov, Izv. Sibirsk. Otd. Akad. Nauk, Ser. Khim. Nauk, 11/4 (1984) 33.

    Google Scholar 

  5. T. Sato, J. Thermal Anal., 32 (1987) 61.

    Article  Google Scholar 

  6. T. Tsuchida and N. Ichikawa, Reactivity of Solids, 7 (1989) 207.

    Article  Google Scholar 

  7. V. B. Lasarev, G. P. Panasjuk and A. G. Panasjuk, J. Thermal Anal., 38 (1992) 141.

    Google Scholar 

  8. U. Bollman, K. Becker, H.-J. Berger, P. Birke, S. Engels, G. Grunk, K. Jancke, P. Kraak, Cryst. Res. Technol., 23 (1988) 1303.

    Google Scholar 

  9. M. N. Danchevskaya, G. P. Panasjuk and V. B. Lasarev, Zh. Vses. Khim. Obcshchestva im. D. I. Mendeleeva, 36 (1991) 706.

    Google Scholar 

  10. R. A. Buyanov, O. P. Krivoruchko and B. P. Zolotovskij, Izv. Sibirsk. Otd. Akad. Nauk, Ser. Khim. Nauk, 11/4 (1986) 39.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemistry, Moscow State University, 117234, Moscow, Russia

    M. N. Danchevskaya, Yu. D. Ivakin, L. F. Martynova, A. I. Zuy, G. P. Muravieva & V. B. Lazarev

Authors
  1. M. N. Danchevskaya
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yu. D. Ivakin
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. L. F. Martynova
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. I. Zuy
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. G. P. Muravieva
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. V. B. Lazarev
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Danchevskaya, M.N., Ivakin, Y.D., Martynova, L.F. et al. Investigation of thermal transformations in aluminium hydroxides subjected to mechanical treatment. Journal of Thermal Analysis 46, 1215–1222 (1996). https://doi.org/10.1007/BF01979236

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01979236

Keywords

Search

Navigation