Analytical and Numerical Calculations of the Thermal Conductivity of Al2O3 - ZrO2 Composite Ceramics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F10%3A00022975" target="_blank" >RIV/60461373:22310/10:00022975 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Analytical and Numerical Calculations of the Thermal Conductivity of Al2O3 - ZrO2 Composite Ceramics

Original language description

Thermal conductivity is one of the essential properties of ceramic materials with respect to their application as insulation materials, refractories or materials for electronics. The topic of this contribution is the estimation and calculation of the thermal conductivity of Al2O3 ? ZrO2 composite ceramics using analytical and numerical approaches. Both the dependence of thermal conductivity on the composition and on the grain size is taken into account for one- and two-phase composites. In the first part, an analytical solution of the dependence on the composition based upon the micromechanical bounds (Hashin-Shtrikman bounds) and on the grain size based upon the phase mixture approach is presented with the use of a relatively new relation (sigmoidal average). For the estimation of the latter a model of grain boundary as a separate phase of thickness 1nm and thermal conductivity close to that of glasses and amorphous dielectrics, viz. 1.1W/mK is assumed. The second part presents numeri

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JH - Ceramics, fire-proof materials and glass

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Ceramics - J. Georg. Ceram. Assoc.

ISSN

1512-0325

e-ISSN

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Volume of the periodical

23 (2010)

Issue of the periodical within the volume

2

Country of publishing house

GE - GEORGIA

Number of pages

7

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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