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Synthesis of glasses by hot-pressing of gels

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Abstract

The synthesis of glasses by hot-pressing of gels was studied for pure SiO2, as well as for La2O3-SiO2 and B2O3-SiO2 systems. It was recognized that gels prepared by hydrolysis and polycondensation of organometallic compounds crystallize less quickly than those obtained from hydrosols, and are, therefore, particularly suited for hot-pressing. Different methods of pressing were investigated; they influence the residual OH− content of resultant glasses. Murrayet al.'s densification model based on viscous flow was found to apply in the case of the gels under study and a dynamic viscosity evaluation is proposed to determine rapidly the pressing parameters for a given gel-glass conversion.

The method was used, in particular, for the refractory system La2O3-SiO2 and the devitrification behaviour of hot-pressed glasses was studied quantitatively. It was found that the residual OH− groups catalyse the conversion to a glass-ceramic material. The influence of pressure was also studied in some cases, and it was found to favour the precipitation of dense phases.

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References

  1. W. L. Konijnendijk, M. Van Dunren andH. Groenendijk,Verres Réfract. 27 (1973) 11.

    CAS  Google Scholar 

  2. S. P. Mukherjee, J. Zarzycki andJ. P. Traverse,J. Non-Cryst. Solids 11 (1976) 341.

    CAS  Google Scholar 

  3. H. Dislich,Angew. Chem. Internat. Edit. 10 (1971) 363.

    Article  CAS  Google Scholar 

  4. G. J. McCarthy andR. Roy,J. Amer. Ceram. Soc. 54 (1971) 637.

    CAS  Google Scholar 

  5. I. Simon, ″Modern aspect of the vitreous state″, Vol. 1, edited by J. D. Mackenzie (Butterworths, London, 1960) 135.

    Google Scholar 

  6. W. Eitel, ″Silicate Science″, Vol. 1 (Academic Press, New York, 1964) 23.

    Google Scholar 

  7. J. Fripiat, A. Leonard andN. Barake,Bull. Soc. Chim. Fr. (1963) 122.

  8. F. Matossi andH. Bluschke,Zeits. f. Phys. 108 (1938) 295.

    Article  CAS  Google Scholar 

  9. J. Fripiat andA. Jelli, Congrès International du Verre, Bruxelles,1 (1968) 14.

    Google Scholar 

  10. G. B. Wilmot, Ph.D. Thesis, MIT (1954).

  11. K. Kamiya, S. Sakka andI. Yamanaka, Congrès International du Verre, Kyoto,13 (1974) 44.

    CAS  Google Scholar 

  12. Product Bulletin, Ludox, Colloïdal Silica E. I., DuPont de Nemours and Co.

  13. P. Murray, E. P. Rodgers andA. E. Williams,Trans. Brit. Ceram. Soc. 53 (1954) 473.

    Google Scholar 

  14. T. Vasilos,J. Amer. Ceram. Soc. 43 (1960) 517.

    CAS  Google Scholar 

  15. G. Hetherington, K. H. Jack andJ. C. Kennedy,Phys. Chem. Glasses 5 (1964) 130.

    CAS  Google Scholar 

  16. G. Hetherington andK. H. Jack,Phys. Chem. Glasses 3 (1962) 12.

    Google Scholar 

  17. N. A. Toropov andI. A. Bondar,Izvest. Akad. Nauk. SSSR otdelenie Khim. Nauk. 5 (1961) 740.

    Google Scholar 

  18. S. P. Mukherjee, J. Zarzycki, J. P. Traverse andJ. M. Badie,J. Non-Cryst. Solids 20 (1976) 455.

    Article  CAS  Google Scholar 

  19. F. C. Kracek in ″Phase Diagrams for Ceramists″ edited by E. Levin, C. Robbins, H. Mc Murdie, Vol. 1, (The American Ceramic Society, 1964) 84.

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Authors and Affiliations

  1. Laboratory of Materials Science and CNRS Glass Laboratory, University of Montpellier 2, France

    M. Decottignies, J. Phalippou & J. Zarzycki

Authors
  1. M. Decottignies
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  2. J. Phalippou
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  3. J. Zarzycki
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Decottignies, M., Phalippou, J. & Zarzycki, J. Synthesis of glasses by hot-pressing of gels. J Mater Sci 13, 2605–2618 (1978). https://doi.org/10.1007/BF02402747

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