2008
DOI: 10.3989/cyv.2008.v47.i6.153
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¿Nano o micro polvos de alúmina? Una elección antes de la sinterización

Abstract: Two different wet routes have been used to synthesize alumina powders in order to compare the characteristics of the final product and its behaviour during sintering. The Homogeneous Precipitation (HP) gives rise to nanoparticulated powders of about 2 nm. However, such particles quickly aggregate and grow with calcination temperature. The Polymerized Organic-Inorganic Synthesis (POI) produces homogeneous particle size powders (about 1 micron) after resin charring. The characterization of the powder surface is … Show more

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Cited by 4 publications
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“…A mixture of techniques such as FTIR, TG/DTA, TEM, and NMR are sometimes employed to analyze the structural evolution of Al 2 O 3 , but most past work has relied primarily on XRD. , As Figure a–b illustrate, the unique XRD pattern of each Al 2 O 3 phase identifies the structure much like a fingerprint. Accordingly, we collected XRD data for alumina calcined every 50 °C from 100 to 1200 °C to identify the phases produced by the solvent-deficient method as a function of temperature.…”
Section: Resultsmentioning
confidence: 99%
“…A mixture of techniques such as FTIR, TG/DTA, TEM, and NMR are sometimes employed to analyze the structural evolution of Al 2 O 3 , but most past work has relied primarily on XRD. , As Figure a–b illustrate, the unique XRD pattern of each Al 2 O 3 phase identifies the structure much like a fingerprint. Accordingly, we collected XRD data for alumina calcined every 50 °C from 100 to 1200 °C to identify the phases produced by the solvent-deficient method as a function of temperature.…”
Section: Resultsmentioning
confidence: 99%