Seeding with γ‐Alumina for Transformation and Microstructure Control in Boehmite‐Derived α‐Alumina

James L. McArdle, Gary Lynn Messing

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The dehydration, transformation, and densification of boehmite (γ‐AlOOH) are enhanced by addition of γ‐Al2O3 seed particles. α‐Al2O3 microstructures with uniform 1‐ to 2‐μm grain size and sintered densities 98% of theoretical are achieved at 1300°C Thermal analysis shows that γ‐Al2O3 seed particles transform to α‐Al2O3 before the matrix, thus controllably nucleating the transformation of θ‐AI2O3 to α‐Al2O3.

Original languageEnglish (US)
Pages (from-to)C‐98-C‐101
JournalJournal of the American Ceramic Society
Volume69
Issue number5
DOIs
StatePublished - Jan 1 1986

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Aluminum Oxide
Seed
Alumina
Microstructure
Dehydration
Densification
Thermoanalysis
aluminum oxide hydroxide

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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abstract = "The dehydration, transformation, and densification of boehmite (γ‐AlOOH) are enhanced by addition of γ‐Al2O3 seed particles. α‐Al2O3 microstructures with uniform 1‐ to 2‐μm grain size and sintered densities 98{\%} of theoretical are achieved at 1300°C Thermal analysis shows that γ‐Al2O3 seed particles transform to α‐Al2O3 before the matrix, thus controllably nucleating the transformation of θ‐AI2O3 to α‐Al2O3.",
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Seeding with γ‐Alumina for Transformation and Microstructure Control in Boehmite‐Derived α‐Alumina. / McArdle, James L.; Messing, Gary Lynn.

In: Journal of the American Ceramic Society, Vol. 69, No. 5, 01.01.1986, p. C‐98-C‐101.

Research output: Contribution to journalArticle

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AU - Messing, Gary Lynn

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