Accession Number:

AD1031620

Title:

Radiative Transport Modelling of Thermal Barrier Coatings

Descriptive Note:

Technical Report,01 Mar 2016,28 Feb 2017

Corporate Author:

Lumium Optical Precision Measurement Solutions Leeuwarden

Personal Author(s):

• Heeg,Bauke

Report Date:

2017-03-24

Pagination or Media Count:

16.0

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.

Descriptors:

• radiative transfer
• barrier coatings
• absorption coefficients
• optical properties
• probability density functions
• probability distribution functions
• diffusion theory

Subject Categories:

• Coatings, Colorants and Finishes

Distribution Statement:

APPROVED FOR PUBLIC RELEASE