Microstructural and morphological analysis of nanostructured alumina particles synthesized at low temperature via aerosol route
Authorized Users Only
2008
Authors
Martín, M. I.Rabanal, Maria Eugenia

Gómez, Luz Stella

Torralba, Jose Manuel
Milošević, Olivera

Article (Published version)

Metadata
Show full item recordAbstract
Nanometer-sized particles (1-100 nm) are of considerable interest for a wide variety of applications, ranking from catalyst to luminescence ceramics, due to their unique and improved properties primarily determined by size, composition and structure. In this study, we report a simple, rapid aerosol decomposition process for the continuous synthesis of nanoparticles with adjustable sizes, narrow size distribution, high crystallinity and good stoichiometry. This paper presents the preparation and characterization of nanostructured spherical alumina particles (<500 nm sized) by low temperature aerosol synthesis for the application in MMCs reinforcement. Synthesis procedure includes aerosol formation ultrasonically from alumina nitrate water solution and its decomposition into a tubular flow reactor at 400 °C. Consequently, as-obtained particles are spherical, smooth, amorphous and in non-agglomerated state. The phase crystallization, either into γ-Al2O3 or α-Al2O3 is promoted by additi...onal thermal treatment ranging between 700 °C and 1300 °C. Detailed phase and structural analyses were carried out using X-ray powder diffraction (XRD), scanning electron microscopy (SEM/EDS) and analytical and high-resolution transmission electron microscopy (TEM/HRTEM). © 2008 Elsevier Ltd. All rights reserved.
Keywords:
aerosols / Al2O3 / nanoparticles / spray PyrolysisSource:
Journal of the European Ceramic Society, 2008, 28, 13, 2487-2494Publisher:
- Elsevier
Funding / projects:
- Ministry for Education and Science of Spain, Juan de la Cierva Program JCI-2005-1892-13
- Ministry for Education and Science of Spain, MAT2006-02458
- Ministry for Education and Science of Spain, Grant SAB 2004-0035
DOI: 10.1016/j.jeurceramsoc.2008.03.019
ISSN: 0955-2219
WoS: 000258432400007
Scopus: 2-s2.0-47349122981
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Martín, M. I. AU - Rabanal, Maria Eugenia AU - Gómez, Luz Stella AU - Torralba, Jose Manuel AU - Milošević, Olivera PY - 2008 UR - https://dais.sanu.ac.rs/123456789/3573 AB - Nanometer-sized particles (1-100 nm) are of considerable interest for a wide variety of applications, ranking from catalyst to luminescence ceramics, due to their unique and improved properties primarily determined by size, composition and structure. In this study, we report a simple, rapid aerosol decomposition process for the continuous synthesis of nanoparticles with adjustable sizes, narrow size distribution, high crystallinity and good stoichiometry. This paper presents the preparation and characterization of nanostructured spherical alumina particles (<500 nm sized) by low temperature aerosol synthesis for the application in MMCs reinforcement. Synthesis procedure includes aerosol formation ultrasonically from alumina nitrate water solution and its decomposition into a tubular flow reactor at 400 °C. Consequently, as-obtained particles are spherical, smooth, amorphous and in non-agglomerated state. The phase crystallization, either into γ-Al2O3 or α-Al2O3 is promoted by additional thermal treatment ranging between 700 °C and 1300 °C. Detailed phase and structural analyses were carried out using X-ray powder diffraction (XRD), scanning electron microscopy (SEM/EDS) and analytical and high-resolution transmission electron microscopy (TEM/HRTEM). © 2008 Elsevier Ltd. All rights reserved. PB - Elsevier T2 - Journal of the European Ceramic Society T1 - Microstructural and morphological analysis of nanostructured alumina particles synthesized at low temperature via aerosol route SP - 2487 EP - 2494 VL - 28 IS - 13 DO - 10.1016/j.jeurceramsoc.2008.03.019 UR - https://hdl.handle.net/21.15107/rcub_dais_3573 ER -
@article{ author = "Martín, M. I. and Rabanal, Maria Eugenia and Gómez, Luz Stella and Torralba, Jose Manuel and Milošević, Olivera", year = "2008", abstract = "Nanometer-sized particles (1-100 nm) are of considerable interest for a wide variety of applications, ranking from catalyst to luminescence ceramics, due to their unique and improved properties primarily determined by size, composition and structure. In this study, we report a simple, rapid aerosol decomposition process for the continuous synthesis of nanoparticles with adjustable sizes, narrow size distribution, high crystallinity and good stoichiometry. This paper presents the preparation and characterization of nanostructured spherical alumina particles (<500 nm sized) by low temperature aerosol synthesis for the application in MMCs reinforcement. Synthesis procedure includes aerosol formation ultrasonically from alumina nitrate water solution and its decomposition into a tubular flow reactor at 400 °C. Consequently, as-obtained particles are spherical, smooth, amorphous and in non-agglomerated state. The phase crystallization, either into γ-Al2O3 or α-Al2O3 is promoted by additional thermal treatment ranging between 700 °C and 1300 °C. Detailed phase and structural analyses were carried out using X-ray powder diffraction (XRD), scanning electron microscopy (SEM/EDS) and analytical and high-resolution transmission electron microscopy (TEM/HRTEM). © 2008 Elsevier Ltd. All rights reserved.", publisher = "Elsevier", journal = "Journal of the European Ceramic Society", title = "Microstructural and morphological analysis of nanostructured alumina particles synthesized at low temperature via aerosol route", pages = "2487-2494", volume = "28", number = "13", doi = "10.1016/j.jeurceramsoc.2008.03.019", url = "https://hdl.handle.net/21.15107/rcub_dais_3573" }
Martín, M. I., Rabanal, M. E., Gómez, L. S., Torralba, J. M.,& Milošević, O.. (2008). Microstructural and morphological analysis of nanostructured alumina particles synthesized at low temperature via aerosol route. in Journal of the European Ceramic Society Elsevier., 28(13), 2487-2494. https://doi.org/10.1016/j.jeurceramsoc.2008.03.019 https://hdl.handle.net/21.15107/rcub_dais_3573
Martín MI, Rabanal ME, Gómez LS, Torralba JM, Milošević O. Microstructural and morphological analysis of nanostructured alumina particles synthesized at low temperature via aerosol route. in Journal of the European Ceramic Society. 2008;28(13):2487-2494. doi:10.1016/j.jeurceramsoc.2008.03.019 https://hdl.handle.net/21.15107/rcub_dais_3573 .
Martín, M. I., Rabanal, Maria Eugenia, Gómez, Luz Stella, Torralba, Jose Manuel, Milošević, Olivera, "Microstructural and morphological analysis of nanostructured alumina particles synthesized at low temperature via aerosol route" in Journal of the European Ceramic Society, 28, no. 13 (2008):2487-2494, https://doi.org/10.1016/j.jeurceramsoc.2008.03.019 ., https://hdl.handle.net/21.15107/rcub_dais_3573 .