Corundum-to-spinel structural phase transformation in alumina

Several polymorphs exist in alumina (Al2O3), and they transform to a stable α-phase with a hexagonal corundum structure on thermal annealing. This structural change is irreversible as a function of temperature, and transformation of corundum to another metastable crystalline phase has never been obs...

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Veröffentlicht in:	Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2015-09, Vol.358, p.136-141
Hauptverfasser:	Adachi, Shogo, Ishimaru, Manabu, Sina, Younes, McHargue, Carl J., Sickafus, Kurt E., Alves, Eduardo
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum oxide Annealing Corundum Heat treatment Metastable phase Microstructure Phase transformation Phase transformations Spinel TEM Transforms XRD
Online-Zugang:	Volltext
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