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Thermal Expansion and Thermal Conductivity of Rare Earth SilicatesRare earth silicates are considered promising candidate materials for environmental barrier coatings applications at elevated temperature for ceramic matrix composites. High temperature thermophysical properties are of great importance for coating system design and development. In this study, the thermal expansion and thermal conductivity of hot-pressed rare earth silicate materials were characterized at temperatures up to 1400 C. The effects of specimen porosity, composition and microstructure on the properties were also investigated. The materials processing and testing issues affecting the measurements will also be discussed.
Document ID
20060051745
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Zhu, Dongming (Army Research Lab. United States)
Lee, Kang N. (Army Research Lab. United States)
Bansal, Narottam P. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
January 27, 2006
Subject Category
Metals And Metallic Materials
Meeting Information
Meeting: 30th International Conference and Exposition on Advanced Ceramics and Composites
Location: Cocoa Beach, FL
Country: United States
Start Date: January 22, 2006
End Date: January 27, 2006
Funding Number(s)
WBS: WBS 22-714-30-26
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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