Spectral emittance measurements for ytterbium disilicate‐based environmental barrier coatings

Abstract The spectral reflectance and transmittance of two free‐standing ytterbium disilicate (Yb2Si2O7)—based environmental barrier coatings (EBCs) were measured from 25°C up to 1270°C. The measurements were collected over the spectral range of approximately 2–20 µm. The spectral emittance was then...

Full description

Saved in:
Bibliographic Details
Main Authors: Michael J. Presby, Sylvie F. Crowell, Jeffrey I. Eldridge, James R. Markham
Format: Article
Language:English
Published: Wiley 2024-09-01
Series:International Journal of Ceramic Engineering & Science
Subjects:
Online Access:https://doi.org/10.1002/ces2.10234
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract The spectral reflectance and transmittance of two free‐standing ytterbium disilicate (Yb2Si2O7)—based environmental barrier coatings (EBCs) were measured from 25°C up to 1270°C. The measurements were collected over the spectral range of approximately 2–20 µm. The spectral emittance was then determined through conservation of energy and Kirchhoff's law of thermal radiation. The spectral emittance measurements for the EBCs were then compared to previous measurements for a thermal barrier coating (TBC).
ISSN:2578-3270