Texture development in reaction-bonded alumina (RBAO) ceramics via templated grain growth

Ender Suvaci, Gary L. Messing

Research output: Contribution to journalConference article

Abstract

Texture development in liquid-phase sintered RBAO ceramics has been studied during templated grain growth (TGG): a technique for developing crystallographic texture in ceramic bodies via the grain growth of aligned non-equiaxed particles in a dense and fine grain size matrix. The process of TGG occurs in 3 stages: densification, initial growth of individual template particles and template impingement and template thickening. To understand texture development in RBAO ceramics during each stage of TGG, we have performed a series of experiments to isolate the growth of an individual grain. Experiments with samples containing low template (approx. 1 vol%) concentration at 1450°C showed that the radial growth of platelets is rapid and controlled by diffusion, whereas growth perpendicular to the basal surface is controlled by nucleation.

Original languageEnglish (US)
Pages (from-to)71-78
Number of pages8
JournalCeramic Engineering and Science Proceedings
Volume21
Issue number4
StatePublished - Jan 1 2000
Event24th Annual Conference on Composites, Advanced Ceramics, Materials,and Structures:B - Cocoa Beach, FL, USA
Duration: Jan 23 2000Jan 28 2000

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Aluminum Oxide
Grain growth
Alumina
Textures
Platelets
Densification
Nucleation
Experiments
Liquids

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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abstract = "Texture development in liquid-phase sintered RBAO ceramics has been studied during templated grain growth (TGG): a technique for developing crystallographic texture in ceramic bodies via the grain growth of aligned non-equiaxed particles in a dense and fine grain size matrix. The process of TGG occurs in 3 stages: densification, initial growth of individual template particles and template impingement and template thickening. To understand texture development in RBAO ceramics during each stage of TGG, we have performed a series of experiments to isolate the growth of an individual grain. Experiments with samples containing low template (approx. 1 vol{\%}) concentration at 1450°C showed that the radial growth of platelets is rapid and controlled by diffusion, whereas growth perpendicular to the basal surface is controlled by nucleation.",
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Texture development in reaction-bonded alumina (RBAO) ceramics via templated grain growth. / Suvaci, Ender; Messing, Gary L.

In: Ceramic Engineering and Science Proceedings, Vol. 21, No. 4, 01.01.2000, p. 71-78.

Research output: Contribution to journalConference article

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