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Boletín de la Sociedad Española de Cerámica y Vidrio
Article . 2006 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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DIGITAL.CSIC
Article . 2008 . Peer-reviewed
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Equipo comparativo para la medida de conductividad térmica de materiales cerámicos

Comparative equipment for the measurement of the thermal conductivity
Authors: Barea, Rafael; Marín Marín, Ricardo; Osendi, María Isabel; Martínez, R.; Miranzo López, Pilar;

Equipo comparativo para la medida de conductividad térmica de materiales cerámicos

Abstract

[ES] Entre las distintas técnicas de medida de la conductividad térmica de materiales, el método comparativo, recogido en la norma ASTM E1225-99, es el más adecuado para muestras porosas o materiales compuestos. Este método permite determinar conductividades térmicas en estado estacionario, en el intervalo de valores de 0,2 a 200 W/mK, y a temperaturas de ensayo en el rango 100-1300 K, dependiendo del diseño del equipo. En este trabajo se expone el diseño, desarrollo y puesta a punto de un equipo de medida de conductividad térmica basado en este método. Paralelamente, se realiza una validación del equipo mediante el estudio comparativo de los resultados obtenidos usando el equipo comparativo y la técnica del pulso láser en materiales porosos de mullita.

[EN] Among the different techniques available for measuring thermal conductivity, the comparative method (ASTM E1225-99) is the most appropriate for porous materials. This method determines the thermal conductivity in steady state conditions in the 100 - 1300 K temperature range and for conductivities between 0.2 and 200 W/mK, respectively, depending on the equipment characteristics. In the present paper, the design and development, as well as the start up process, of an apparatus based on this method is described. Thermal conductivity data on a mullite based refractory, measured by both the laser flash and the comparative methods, are presented and comparatively discussed in order to validate the developed equipment.

Este trabajo ha sido financiado por los proyectos CAM 07N/0095/2002 y Mcyt, MAT 2003-06147-C04-01.

Peer reviewed

Country
Spain
Related Organizations
Keywords

mullita, Método comparativo, comparative method, método comparativo, thermal diffusivity, Comparative methods, Clay industries. Ceramics. Glass, mullite, difusividad térmica, Conductividad térmica, Thermal diffusivity, TP785-869, Difusividad térmica, Materiales porosos, Thermal conductivity, Mullite, Mullita, Porous materials, porous materials, materiales porosos

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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!
1
Average
Average
Average
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gold