Thermal conductivity of highly porous mullite material

Barea, Rafael; Osendi, M.I.; Ferreira, J.M.F.; Miranzo, P.

doi:10.1016/j.actamat.2005.03.040

Cited by 149 publications

(67 citation statements)

References 14 publications

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“…For both mullite and zirconia (PsZ) foams, one can observe a weak increase of the effective thermal conductivity with temperature between ambient temperature and T = 673 K. This is consistent with literature data [27][28][29][30][31] concerning dense mullite and dense PsZ which generally mention slight increases of their thermal conductivities with temperature.…”

Section: Presentation and Discussion On The Experimental Resultssupporting

confidence: 88%

Experimental investigations of the coupled conductive and radiative heat transfer in metallic/ceramic foams

Coquard¹,

Rochais²,

Baillis

2009

International Journal of Heat and Mass Transfer

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Section: Presentation and Discussion On The Experimental Resultssupporting

confidence: 88%

Experimental investigations of the coupled conductive and radiative heat transfer in metallic/ceramic foams

Coquard¹,

Rochais²,

Baillis

2009

International Journal of Heat and Mass Transfer

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“…where k * sm and k * sa are the thermal conductivity of mullite crystal [29] and amorphous phase [30], respectively. X c is the crystallinity of mullite, which can be obtained from previous X-ray diffraction analysis shown in Ref.…”

Section: Thermal Conductive Propertiesmentioning

confidence: 99%

Simultaneous reconstruction of thermal degradation properties for anisotropic scattering fibrous insulation after high temperature thermal exposures

Zhao

Zhang

et al. 2015

Applied Thermal Engineering

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“…Yu et al [7] used a new steady-state method to measure the thermal conductivities of porous solid catalyst pellets. Measurements on other materials with different methods have been reported elsewhere [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity of Cobalt-Based Catalyst for Fischer–Tropsch Synthesis

Zhang

Ying

et al. 2010

Int J Thermophys

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In this study, the thermal conductivity of cobalt-based catalyst specimens in the temperature range from 160 • C to 255 • C are measured via a steady-state apparatus. The apparatus and procedures are applied to several specimens of cobalt-based catalyst powder compacts. Specimens with different degrees of porosity are produced by pressing cobalt-based catalyst powder with a particle size of (80 to 360) mesh. The thermal conductivity of cobalt-based catalyst powder compacts is investigated as functions of temperature, specimen density, porosity, and powder size. The results indicate that the thermal conductivity of the catalyst specimens increases linearly with temperature and density and is practically independent of the particle size of the powder in an atmosphere of air, while the porosity dependence of the thermal conductivity is inverse to that of density. In addition, the effects of some measuring factors on the thermal conductivity show that the reliability of the thermal conductivity measurements of cobalt-based catalyst specimens are influenced easily by parallelism, specimen roughness, and moisture content, whereas the specimen thickness and water bath temperature have only a slight effect on the reliability. A Cu Cross-section area of copper heat probe (m 2 ) A S Cross-section area of specimen (m 2 ) L 1Horizontal distance between two thermocouples welded on the lower heat probe (m) L 2 Distance between the measuring end of the upper heat probe and thermocouples welded on the lower heat probe (m) L S Thickness of specimen (m) R Correlation coefficient R Total thermal resistance (km 2 · W −1 ) t 1 , t 2 Temperatures of the lower heat probe ( • C) t 3 , t 4 Temperatures of the upper heat probe ( • C) Greek Symbols λThermal conductivity (W · m −1 · • C −1 ) λ Cu Thermal conductivity of copper heat probe (W · m −1 · • C −1 ) δL S /L S Measuring error of specimen thickness δ D/D Measuring error of specimen diameter δ t/tMeasuring error of temperature difference

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Thermal conductivity of highly porous mullite material

Cited by 149 publications

References 14 publications

Experimental investigations of the coupled conductive and radiative heat transfer in metallic/ceramic foams

Experimental investigations of the coupled conductive and radiative heat transfer in metallic/ceramic foams

Simultaneous reconstruction of thermal degradation properties for anisotropic scattering fibrous insulation after high temperature thermal exposures

Thermal Conductivity of Cobalt-Based Catalyst for Fischer–Tropsch Synthesis

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