Abstract
In-situ Young's moduli of thin constituent layers of a solid oxide fuel cell (SOFC) are needed to estimate the mechanical reliability of the fuel cell unit. Because a robust technique to measure the same is not available, an improved methodology is proposed to determine the in-situ Young's moduli of thin ceramic layers of a substrate-supported SOFC. The measured Young's moduli of the constituent layers were found to be close to those of corresponding bulk materials using the resonant ultrasound spectroscopy (RUS) technique but were different from the values obtained using nanoindentation.
| Original language | English |
|---|---|
| Pages (from-to) | 522-529 |
| Number of pages | 8 |
| Journal | Journal of Power Sources |
| Volume | 273 |
| DOIs | |
| State | Published - Jan 1 2015 |
Funding
This research is based upon work supported by the U.S. Department of Energy (Office of Fossil Energy), National Energy Technology Laboratory under Award Number DE-FE0000303 . The authors thank R. Trejo, D. McClurg, R. Lowden and A. Marquez for assistance with nanoindentation and RUS experiments. T. R. Watkins, D. Erdman and E. Lara-Curzio are thanked for reviewing the manuscript.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | |
| National Energy Technology Laboratory | DE-FE0000303 |
Keywords
- Elastic modulus
- Microcracking
- Porosity
- Reliability
- Tension
