화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.56, 285-291, December, 2017
DOI10.1016/j.jiec.2017.07.021  Export Citation
Strengthening mechanism and electrochemical characterization of ZrO2 nanoparticles in Nickel.Aluminum alloy for Molten Carbonate Fuel Cells
Domenico Frattini, Grazia Accardo1, †, Angelo Moreno2, Sung Pil Yoon1, Jong Hee Han1, and Suk Woo Nam1
  • Department of New Energy Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, South Korea
  • 1Fuel Cell Research Center, KIST, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul, South Korea
  • 2ENEA, Italian National Agency for New Technologies, Casaccia Research Center, Via Anguillarese 301, 00123 Rome, Italy
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In this work the positive effect of zirconia nanoparticles in Nickel.Aluminum anodes is investigated. Results showed that, as the zirconia content increases, bending strength and creep resistance are improved. Mechanical strength increases from 5.94 to 11.38 kgfcm-2 and creep is reduced up to 3.31%. Morphology and microstructural analysis revealed that nanoparticles adhere strongly on the surface of larger metal particles and microstructure is strengthened at grain level. The diffusion of Aluminum atoms into different vacancies reduces dislocations movement. A part these mechanisms, charge and mass transfer resistance are lower and the internal resistance after 500 h at 650 °C is 0.24 mΩ cm2.
Keywords:Anode;Creep;Nanoparticle;MCFC;Zirconia
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