Radiative Transport Modelling of Thermal Barrier Coatings

Abstract

The aim of this project is to develop an accurate analytical model of radiative transfer through porous ceramic thermal barrier coatings (TBCs). In particular, the model is aimed at computation of the integrated optical path-length as a function of several basic parameters including bulk scatter and absorption coefficients. Further, the model will need to take into account the effects of interface reflections and a multilayer structure. Such a model is of interest for use in low coherence interferometry measurements (also referred to as optical coherence tomography) on TBCs, in particular those that have been infiltrated with molten silicates (CMAS - calcium, magnesium, aluminum oxide silicates).

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Document Details

Document Type
Technical Report
Publication Date
Mar 24, 2017
Accession Number
AD1031620

Entities

People

  • Bauke Heeg

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Absorption
  • Air Force Research Laboratories
  • Barrier Coatings
  • Coatings
  • Coefficients
  • Distribution Functions
  • Experimental Data
  • Materials
  • Measurement
  • Optical Properties
  • Probability
  • Probability Density Functions
  • Probability Distribution Functions
  • Probability Distributions
  • Random Walk
  • Reflection
  • Simulations

Fields of Study

  • Physics

Readers

  • Spectroscopy.
  • Surface Engineering/Surface Coating Technology.
  • Wave Propagation and Nonlinear Chaotic Dynamics.