Thermal Conductivity of Porous Silicon Carbide Derived from Wood Precursors

Biomorphic silicon carbide (bioSiC), a novel porous ceramic derived from natural wood precursors, has potential applicability at high temperatures, particularly when rapid temperature changes occur. The thermal conductivity of bioSiC from five different precursors was experimentally determined using...

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Bibliographic Details
Published inJournal of the American Ceramic Society Vol. 90; no. 9; pp. 2855 - 2862
Main Authors Pappacena, K. E., Faber, K. T., Wang, H., Porter, W. D.
Format Journal Article
LanguageEnglish
Published Malden, USA Blackwell Publishing Inc 01.09.2007
Blackwell
Wiley Subscription Services, Inc
Subjects
09 BIOMASS FUELS
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
CERAMICS
Chemical industry and chemicals
Exact sciences and technology
Heat conductivity
HEAT FLUX
Heat transfer
Mathematical analysis
Miscellaneous
Object-oriented programming
Porosity
Porous materials
Precursors
Silicon carbide
SILICON CARBIDES
SPECIFIC HEAT
Technical ceramics
THERMAL CONDUCTIVITY
WOOD
Scanning electron microscopy
Wood
Theoretical study
Experimental study
Porous material
Modeling
Precursor
Non oxide ceramics
Finite element method
Thermal properties
Silicon Carbides
Thermal conductivity
Technical ceramics
Biomorphism
Manufacturing
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Summary:Biomorphic silicon carbide (bioSiC), a novel porous ceramic derived from natural wood precursors, has potential applicability at high temperatures, particularly when rapid temperature changes occur. The thermal conductivity of bioSiC from five different precursors was experimentally determined using flash diffusivity and specific heat measurements at temperatures ranging from room temperature to 1100°C. The results were compared with values obtained from object‐oriented finite‐element analysis (OOF). OOF was also used to model and understand the heat‐flow paths through the complex bioSiC microstructures.
Bibliography:ark:/67375/WNG-WCCPD6GH-Q
ArticleID:JACE01777
istex:C3F8ECE40194C611F6F4B29DE2774F7A21B2292D
N. Padture—contributing editor
This work is financially supported by the National Science Foundation Grant DMR‐0244258. This material is based upon work supported under a National Science Foundation Graduate Research Fellowship.
NUANCE Center is supported by NSF‐NSEC, NSF‐MRSEC, Keck Foundation, the State of Illinois, and Northwestern University.
A portion of the research was sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, as part of the High‐Temperature Materials Laboratory User Program, Oak Ridge National Laboratory, managed by UT‐Battelle LLC, for the U.S. Department of Energy under contract number DE‐AC05‐00OR22725.
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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DE-AC05-00OR22725
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2007.01777.x