Modeling anisotropic single crystal growth kinetics in liquid phase sintered α-Al2O3

Matthew M. Seabaugh, Ender Suvaci, Bhaskar Brahmaroutu, Gary L. Messing

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Single crystals of α-alumina with {0001}, {11̄20} and {01̄12} orientations were embedded in a matrix of liquid phase sintered alumina to study α-alumina single crystal growth in the presence of a calcium aluminosilicate liquid. Growth on the {11̄20} and {01̄12} surfaces was observed to occur by a diffusion-controlled mechanism while growth on the basal surface was controlled by two-dimensional nucleation. Growth models, which incorporate the change in matrix grain size, were derived and shown to fit the growth kinetics.

Original languageEnglish (US)
Pages (from-to)257-267
Number of pages11
JournalInterface Science
Volume8
Issue number2
DOIs
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics

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