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Boletín de la Sociedad Española de Cerámica y Vidrio
Article . 2005 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Posibilidades del análisis de imagen para el estudio de la síntesis de materiales por combustión

Study of material combustion synthesis by image analysis
Authors: Chinarro, E.; Moreno, B.; Martín, D.; González, L.; Villanueva, E.; Guinea, D.; Jurado, J. R.;

Posibilidades del análisis de imagen para el estudio de la síntesis de materiales por combustión

Abstract

[ES] El análisis de la imagen obtenida por una cámara de video digital se utiliza para el estudio de la reacción de síntesis por combustión de Sm0.95CoO3-δ. El método de combustión presenta como característica intrínseca la generación de materiales nanométricos cerámicos y metal-cerámicos; permitiendo la producción de compuestos con actividad catalítica. En este trabajo se obtienen polvos de tamaño de cristalito entorno a 5 nm, con una superficie específica de 24 m2/g y como consecuencia bastante reactivos. Se llevaron cabo estudios preliminares sobre la etapa de ignición de la síntesis usando el análisis de imagen por descomposición de los planos de los tres colores primarios; dichos experimentos muestran que la llama generada en esta etapa de ignición es un proceso termodinámicamente aleatorio. La finalidad de este trabajo es establecer un protocolo de experimentación para la futura correlación entre los parámetros de la síntesis por combustión de un material, naturaleza y concentración de precursores entre otros, y la distribución de temperatura durante la ignición, con objeto de optimizar y controlar el proceso. Se abre una línea de investigación basada en la utilización de la técnica de análisis de imagen para realizar un seguimiento controlado de la evolución de la temperatura e intensidad de la llama durante la etapa de ignición de la síntesis por combustión de un material.

[EN] Analysis of the recorded image by a digital video camera of the Sm0.95CoO3-δ combustion synthesis is carried out. Intrinsically the combustion method yields nanometric materials (ceramic and metal-ceramic); allowing to produce catalytic powders. In this work, nanocrystalline powders of around 5 nm with 24 m2/g of specific surface area and, consequently, high reactivity powders were obtained. Preliminary studies were done about ignition step of the synthesis, using image analysis from the three primary colours planes decomposition, these experiments show that the generated flame in this ignition step is a thermodynamically random process. The final aim of this work is to establish a protocol of performance to a future correlation among relevant combustion synthesis parameters of materials, i.e. the precursors nature and concentration, and the temperature distribution during the ignition, to optimise and control the process. This investigation opens an important field, the use of image analysis to carry out a thorough study of the temperature evolution and of the flame intensity during the ignition step of a material combustion synthesis.

Los autores de este trabajo agradecen la financiación de los contratos Post Doctoral I3P-CSIC, y a los proyectos CICYT MAT2001-1489-CO2-02, APOLLON ENK5-CT-2001-00572 y ACERINOX.

Peer reviewed

Keywords

Intensity planes, intensity planes, Clay industries. Ceramics. Glass, Flame temperature, Image analysis, TP785-869, Síntesis de materiales por combustión, Análisis de imagen, flame temperature, Materials combustion synthesis, image analysis, Temperatura de llama, análisis de imagen, Planos de intensidad, temperatura de llama, planos de intensidad

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
8
Average
Average
Average
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