Abstract
The effects of the heat treatment on phase stability, microstructure, and thermal conductivity of plasma-sprayed Y2O3-ZrO2 (YSZ) was investigated. Changes in the thermal conductivity of the coating which occurred during heat treatment were interpreted with respect to microstructural evolution. A metastable tetragonal zirconia phase was the predominant phase in the as-sprayed coating. The thermal conductivity was found to increase after every heat treatment. Changes in the phase stability and microstructure were investigated using X-ray diffraction and transmission electron microscopy.
| Original language | English |
|---|---|
| Pages (from-to) | 2359-2365 |
| Number of pages | 7 |
| Journal | Journal of Materials Science |
| Volume | 37 |
| Issue number | 11 |
| DOIs | |
| State | Published - Jun 1 2002 |
| Externally published | Yes |
Funding
Technology Center, Cooperative Agreement No. DE-FC21-92MC29061, under subcontract 96-01-SR047. A. R. de Arellano-López was supported by the Es-chbach Visiting Scholar Program of the McCormick School of Engineering and Applied Science at North-western University. The thermal conductivity testing was supported by the U.S. DOE, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, as part of the HTML User Program under contract DE-AC05-00OR22725, managed by UT-Batelle, LLC.
| Funders | Funder number |
|---|---|
| Office of Transportation Technologies | DE-AC05-00OR22725 |
| UT-Batelle | |
| U.S. Department of Energy | |
| Office of Energy Efficiency and Renewable Energy | |
| McCormick School of Engineering, Northwestern University |