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

James L. McArdle; Gary L. Messing

doi:10.1111/j.1151-2916.1986.tb04779.x

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

James L. McArdle, Gary L. Messing

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

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 language	English (US)
Pages (from-to)	C‐98-C‐101
Journal	Journal of the American Ceramic Society
Volume	69
Issue number	5
DOIs	https://doi.org/10.1111/j.1151-2916.1986.tb04779.x
State	Published - May 1986

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1986.tb04779.x

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title = "Seeding with γ‐Alumina for Transformation and Microstructure Control in Boehmite‐Derived α‐Alumina",

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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year = "1986",

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doi = "10.1111/j.1151-2916.1986.tb04779.x",

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journal = "Journal of the American Ceramic Society",

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AU - McArdle, James L.

AU - Messing, Gary L.

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Y1 - 1986/5

N2 - 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.

AB - 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

Abstract

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