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Study of thermal conductivity of the porous oxide layer

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU132312" target="_blank" >RIV/00216305:26210/19:PU132312 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.21495/71-0-315" target="_blank" >http://dx.doi.org/10.21495/71-0-315</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.21495/71-0-315" target="_blank" >10.21495/71-0-315</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Study of thermal conductivity of the porous oxide layer

  • Original language description

    Steel production and processing are connected with high temperatures. Due to a reaction between hot surface of the steel and oxygen contained in surrounding atmosphere, oxides are formed on the surface of the steel. Created layer of oxides is called scales and has influence on cooling and quality of steel. Thickness and structure of scale layer are influenced by chemical composition of the steel, temperature and atmosphere during oxidation. Scale layer can be considerably porous which has a significant influence on thermal conductivity of this layer, because air pores have much lower thermal conductivity compared to scales. Steel samples were prepared and porosity of scale layer was studied. Further, the average thermal conductivity of porous scale layer was determined for different regimes of oxidation by FEM modelling. It was found that the average thermal conductivity of porous scale layer is influenced not only by porosity of scale layer, but also by distribution of air pores, which can has a significant effect.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20303 - Thermodynamics

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2019

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Engineering Mechanics 2019 Book of Full Texts

  • ISBN

    978-80-87012-71-0

  • ISSN

  • e-ISSN

  • Number of pages

    4

  • Pages from-to

    315-318

  • Publisher name

    Institute of Thermomechanics of the Czech Academy of Sciences

  • Place of publication

    Praha

  • Event location

    Svratka

  • Event date

    May 13, 2019

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article

    000613255300073