Modelling Thermal Conductivity Of Porous Thermal Barrier Coatings For High-Temperature Aero Engines Using Five Phase Model
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Date
May-18
Authors
Ghai, Ramandeep Singh
Chen, Kuiying
Baddour, Natalie
Journal Title
Journal ISSN
Volume Title
Publisher
CSME-SCGM
Abstract
Thermal Barrier Coatings (TBC) are used to shield hot sections of gas turbine engines, helping to prevent the melting of metallic surfaces. This paper proposes a Five-phase model to calculate the effective thermal conductivity of a TBC, taking into consideration the effect of various defects. By comparing the predicted values with experimental results, it was shown that the proposed five-phase model can predict the thermal conductivity of ceramic coatings closer to the actual values.
Description
Keywords
Materials Technology, TBC, Thermal conductivity, High-temperature coatings, Modelling, Porosity and defects