Synthesis of mullite from oxides doped with topaz

T. V. Vakalova, A. V. Ivanchenkov, V. M. Pogrebenkov, E. V. Alekseev

Research output: Contribution to journalArticle

Abstract

Results of a study of the mullitization in stoichiometric pure oxides Al2O3 and SiO2 doped with topaz are reported. A mineralizing topaz-mediated effect is manifested in the activated synthesis of mullite of short prismatic habit involving products of thermal degradation of topaz (mullite and volatile fluorides). The volatile active fluorides enhance structural imperfections in the reactants and promote their high-temperature interaction. Mullite produced by thermal degradation of topaz plays the role of a seeding agent in the solid-state synthesis of mullite from oxides.

Original languageEnglish
Pages (from-to)441-445
Number of pages5
JournalRefractories and Industrial Ceramics
Volume45
Issue number6
DOIs
Publication statusPublished - 1 Nov 2004

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Topaz
Mullite
Oxides
Fluorides
Pyrolysis
Defects
aluminosilicate

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Synthesis of mullite from oxides doped with topaz. / Vakalova, T. V.; Ivanchenkov, A. V.; Pogrebenkov, V. M.; Alekseev, E. V.

In: Refractories and Industrial Ceramics, Vol. 45, No. 6, 01.11.2004, p. 441-445.

Research output: Contribution to journalArticle

Vakalova, T. V. ; Ivanchenkov, A. V. ; Pogrebenkov, V. M. ; Alekseev, E. V. / Synthesis of mullite from oxides doped with topaz. In: Refractories and Industrial Ceramics. 2004 ; Vol. 45, No. 6. pp. 441-445.
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