발간논문

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Vol.38, No.4, 534 ~ 542, 2000
Title
Pesearch Paper / Powder Matallurgy : The Effect of Microstructure on Creep Behavior in Ni-Al Anodes for Molten Carbonate Fuel Cell
윤호경Ho Gyeong Yun,김남진Nam Jin Kim,임희천Hee Chun Lim,이덕열Dok Yol Lee
Abstract
To improve the creep resistance of the anode for molten carbonate fuel cell, the fabrication processes of Ni anode with different Al contents were investigated, where four types of sintering condition have been examined at different temperatures and gas atmospheres. The effects of such different sintering conditions on the secondary phases, and the morphologies of secondary phase of the anode were examined. If Al is added over the solid solution limit, Ni₃Al or Al₂O₃ are formed as a secondary phase according to the sintering conditions and degrees of creep strain and conductivity are changed as results. The creep test and porosimeter analysis certificated that the Ni₃Al intermetallic compound precipitation and Al₂O₃ dispersion hardened structure had good creep resistances with suitable pore size distributions for anode, which resulted in the stable mechanical performances.
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