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Analysis of Ca-rich efflorescence in ceramic bodies

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2006, 16(3), pp.127-131
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

Ki-Gang Lee 1

1경기대학교

Accredited

ABSTRACT

The efflorescence mechanism of ceramic bodies with diferent sintering temperature was studied by quantitativeanalysis for the efect of various metal ions and anions. SEM and EDS characterization for efflorescence formed on thesurface of the ceramic body showed that the main components of the efflorescence were Ca and S atoms. Leachingwere evaluated by ICP and IC analysis. The results of leaching test showed that the concentration of Ca ion at pH 7 bodywas eight times more than that of pH 10 body. Ca-rich efflorescence was not formed on the surface of ceramic bodywhich prepared at pH 10 and sintered over 10oC.Key words Eflorescence, Ca ion, S ion, Ceramic body

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