Paper Title:
Effect of Thermal Load on Mechanical Properties of Ni/YSZ Anode Support Micro Tubular Solid Oxide Fuel Cell
  Abstract

The most commonly used Micro tubular solid oxide fuel cell (MT-SOFC) anode material is a two phase nickel and yttria stabilized zirconia (Ni/YSZ) cermet. And the mechanical stability of anode support layer, in anode-supported electrolyte designs, is very important for large scale applications. During the assembly of stack and normal operation, MT-SOFC is easy to crack under the fuel pressure and thermal loading due to various mechanical properties. In this study, MT-SOFC model was founded on the background of MT-SOFC stack of electric vehicle and was analyzed by finite element method, based on theories of elasto-plasticity, thermo-mechanical coupling. The effect of thermal load was investigated. It concluded that the failure of the micro-tubular cell occurs mainly because of the residual stress due to the mismatch between the coefficients of thermal expansion of the materials of the electrode assembly. The results are important for studying the life and final spallation of MT-SOFC of electric vehicle.

  Info
Periodical
Advanced Materials Research (Volumes 295-297)
Chapter
Chapter 6: Surface Technology
Edited by
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
Pages
2037-2040
DOI
10.4028/www.scientific.net/AMR.295-297.2037
Citation
Y. Q. Xu, L. L. Wang, Q. W. Zhang, "Effect of Thermal Load on Mechanical Properties of Ni/YSZ Anode Support Micro Tubular Solid Oxide Fuel Cell", Advanced Materials Research, Vols. 295-297, pp. 2037-2040, 2011
Online since
July 2011
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$32.00
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