Features of phase formation of mullite-corundum materials in mixtures of kaolin with a fluoriding component

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6 Citations (Scopus)

Abstract

Processes are studied for synthesis of mullite from kaolin by an unusual method (by fluoride technology) in the temperature range from 850 to 1300°C. Depending on the amount of added fluorine agent it is possible to regulate the ratio of crystal phases that form (acicular mullite and lamellar corundum), that creates prerequisites for controlling preparation of aluminosilicate ceramic with a specific phase composition and a predictable microstructure.

Original languageEnglish
Pages (from-to)197-201
Number of pages5
JournalRefractories and Industrial Ceramics
Volume51
Issue number3
DOIs
Publication statusPublished - Nov 2010

Keywords

  • Heat treatment, synthesis, phase formation, mullite, topaz, corundum
  • Kaolin, ammonium hydrofluoride, fluoriding

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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