RT Journal Article
T1 Characterization of the Aluminas Formed During the Thermal Decomposition of Boehmite by the Rietveld Refinement Method
A1 Jiménez, Jose A.
A1 Padilla, Isabel
A1 López Delgado, Aurora
A1 Fillali, Laila
A1 López Andrés, Sol
AB Boehmite synthesized through a sol‐gel route from a nonconventional raw material, as an aluminum waste, was calcined at temperatures between 500 and 1500°C. Quantification of crystalline phases was performed by the Rietveld refinement of the XRD patterns. γ‐Al2O3 is formed at 500°C, and up to 1000°C, is the dominant phase. At temperatures ranging from 1000 to 1400°C, it was observed the appearance of a four‐phase region. The complete transformation into α‐Al2O3 lasts until 12 h at 1400°C or at higher temperatures. The presence of an amorphous phase in calcined samples was confined by direct comparison with a standard of pure α‐Al2O3.
AB ]
PB Wiley
SN 1546-542X; Essn: 1744-7402
YR 2015
FD 2015-01
LK https://hdl.handle.net/20.500.14352/34241
UL https://hdl.handle.net/20.500.14352/34241
LA eng
NO Ministerio de Ciencia e Innovación (MICINN)
DS Docta Complutense
RD 2 may 2024