2009
DOI: 10.1016/j.jssc.2009.02.006
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Transition alumina phases induced by heat treatment of boehmite: An X-ray diffraction and infrared spectroscopy study

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Cited by 461 publications
(287 citation statements)
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“…The broad peak with a maximum at 3620 cm -1 in figure 3 is due to the stretching mode of O-H groups [13,[26][27][28][29]. This peak disappears after a heat treatment at 500 The transition alumina phases consist of octahedral (AlO 6 ) and tetrahedral (AlO 4 ) aluminium ions [4,32,33].…”
Section: Resultsmentioning
confidence: 99%
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“…The broad peak with a maximum at 3620 cm -1 in figure 3 is due to the stretching mode of O-H groups [13,[26][27][28][29]. This peak disappears after a heat treatment at 500 The transition alumina phases consist of octahedral (AlO 6 ) and tetrahedral (AlO 4 ) aluminium ions [4,32,33].…”
Section: Resultsmentioning
confidence: 99%
“…This peak disappears after a heat treatment at 500 The transition alumina phases consist of octahedral (AlO 6 ) and tetrahedral (AlO 4 ) aluminium ions [4,32,33]. The broad and smooth absorption band without any fine structure in the wave number range from 500 -900 cm -1 characterizes the amorphous aluminium oxide [34].…”
Section: Resultsmentioning
confidence: 99%
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“…Durante la transformación de fases de los óxidos de aluminio, además de las modificaciones en la red cristalina y en la coordinación del aluminio (47,68), se producen fenómenos de sinterización y crecimiento de grano, acompañado de una disminución de superficie específica (65), así como de un aumento de la densidad (69), reflejada en el gráfico de la Figura 2. La pérdida progresiva de superficie conforme aumenta la temperatura es debida a fenómenos de sinterización, por formación de conexiones entre las partículas consecuencia de efectos difusionales (70,71).…”
Section: óXidos De Aluminiounclassified