Spinel Phase Formation During the 980°C Exothermic Reaction in the Kaolinite‐to‐Mullite Reaction Series

Birol Sonuparlak; Mehmet Sarikaya; Ilhan A. Aksay

doi:10.1111/j.1151-2916.1987.tb05637.x

Spinel Phase Formation During the 980°C Exothermic Reaction in the Kaolinite‐to‐Mullite Reaction Series

Birol Sonuparlak
, Mehmet Sarikaya
, Ilhan A. Aksay

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

177 Scopus citations

Abstract

With the use of differential thermal analysis, X‐ray diffraction, and transmission electron microscopic techniques, we showed that γ‐Al₂O₃ type spinel phase is solely responsible for the 980°C exotherm in the kaolinite‐to‐mullite reaction series. Transmission electron microscopic characterization indicated that the spinel formation is preceded by a phase separation in the amorphous dehydroxylated kaolinite matrix. Chemical analysis of the spinel phase by energy dispersive X‐ray spectroscopy revealed a nearly pure Al₃O₂ composition.

Original language	English (US)
Pages (from-to)	837-842
Number of pages	6
Journal	Journal of the American Ceramic Society
Volume	70
Issue number	11
DOIs	https://doi.org/10.1111/j.1151-2916.1987.tb05637.x
State	Published - Nov 1987

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1987.tb05637.x

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abstract = "With the use of differential thermal analysis, X‐ray diffraction, and transmission electron microscopic techniques, we showed that γ‐Al2O3 type spinel phase is solely responsible for the 980°C exotherm in the kaolinite‐to‐mullite reaction series. Transmission electron microscopic characterization indicated that the spinel formation is preceded by a phase separation in the amorphous dehydroxylated kaolinite matrix. Chemical analysis of the spinel phase by energy dispersive X‐ray spectroscopy revealed a nearly pure Al3O2 composition.",

author = "Birol Sonuparlak and Mehmet Sarikaya and Aksay, \{Ilhan A.\}",

year = "1987",

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AU - Sonuparlak, Birol

AU - Sarikaya, Mehmet

AU - Aksay, Ilhan A.

PY - 1987/11

Y1 - 1987/11

N2 - With the use of differential thermal analysis, X‐ray diffraction, and transmission electron microscopic techniques, we showed that γ‐Al2O3 type spinel phase is solely responsible for the 980°C exotherm in the kaolinite‐to‐mullite reaction series. Transmission electron microscopic characterization indicated that the spinel formation is preceded by a phase separation in the amorphous dehydroxylated kaolinite matrix. Chemical analysis of the spinel phase by energy dispersive X‐ray spectroscopy revealed a nearly pure Al3O2 composition.

AB - With the use of differential thermal analysis, X‐ray diffraction, and transmission electron microscopic techniques, we showed that γ‐Al2O3 type spinel phase is solely responsible for the 980°C exotherm in the kaolinite‐to‐mullite reaction series. Transmission electron microscopic characterization indicated that the spinel formation is preceded by a phase separation in the amorphous dehydroxylated kaolinite matrix. Chemical analysis of the spinel phase by energy dispersive X‐ray spectroscopy revealed a nearly pure Al3O2 composition.

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JF - Journal of the American Ceramic Society

IS - 11

ER -

Spinel Phase Formation During the 980°C Exothermic Reaction in the Kaolinite‐to‐Mullite Reaction Series

Abstract

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