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Elastic properties of porous oxide ceramics prepared using starch as a pore-forming agent

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F09%3A00021503" target="_blank" >RIV/60461373:22310/09:00021503 - isvavai.cz</a>

  • Alternative codes found

    RIV/67985891:_____/09:00335445

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Elastic properties of porous oxide ceramics prepared using starch as a pore-forming agent

  • Original language description

    The elastic properties, in particular the tensile modulus (Young's modulus) and Poisson ratio, of porous alumina, zirconia, and alumina-zirconia composite ceramics are studied using the resonance frequency method and the results compared with theoreticalpredictions. Starch is used as a pore-forming agent, so that the resulting microstruture is essentially of the matrix-inclusion type (wiht large bulk pores, connected by small throats when a percolation threshold is exceeded). It is found that for thistype of microstructure the porosity dependence of the Young's moldulus is significantly below the upper Hashin-Shtrikman bound and the power-law prediction; it corresponds well, however, to a recently proposed exponential relation and to an empirical volume-weighted average of the upper and lower Hahin-Shtrikman bound. Results for all three types of ceramics indicate that - in the porosity range considered, i.e. up to approximately 50% - the Poisson ratio depends only slightly on porosit

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JH - Ceramics, fire-proof materials and glass

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2009

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of the European Ceramic Society

  • ISSN

    0955-2219

  • e-ISSN

  • Volume of the periodical

    29

  • Issue of the periodical within the volume

    13

  • Country of publishing house

    BE - BELGIUM

  • Number of pages

    7

  • Pages from-to

  • UT code for WoS article

    000268401700013

  • EID of the result in the Scopus database