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| Abstract No.: |
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| Title: |
Influence of thermal residual strains on bonding strength and fracture of plasma sprayed Ni/LDC anode coating on Ni substrate
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| Authors: |
Yung-Chin Yang / Insititute of Materials Science and Engineering, Taiwan
Chang-Sing Hwang / Physics Division, Institute of Nuclear Energy Research, Taiwan
Chun-Huang Tsai/ Physics Division, Institute of Nuclear Energy Research, Taiwan
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| Abstract: |
In this paper, nano-structured LDC/NiO anode was deposited on porous Ni substrate by atmospheric plasma spraying. The advantage of porous metallic supported thin coating fuel cell is to improve the mechanical strength of fuel cell so that a larger cell area of SOFC fabricated by APS process is effective in cost and can be applied in the harsh environment. However, through the spraying process, residual stresses unavoidably develop in coatings due to the differences in thermal expansion coefficients, and cooling conditions between the coating and the substrate. A significant residual stress may lead to micro-cracks in the film or cause the film to peel from the substrate. Therefore, in this work, we study the biaxial residual stress states of SOFC anode coating on Ni substrate by using the
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