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Effect of Aluminum Titanate (Al 2 TiO 5 ) Doping on the Mechanical Performance of Solid Oxide Fuel Cell Ni‐YSZ Anode
Author(s) -
McCleary M.,
Amendola R.
Publication year - 2017
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201700073
Subject(s) - materials science , non blocking i/o , anode , flexural strength , titanate , doping , aluminium , yttria stabilized zirconia , oxide , phase (matter) , chemical engineering , aluminum oxide , solid oxide fuel cell , composite material , metallurgy , ceramic , cubic zirconia , electrode , catalysis , chemistry , optoelectronics , organic chemistry , engineering , biochemistry
The mechanical behavior of un‐doped and 1–10 wt.% aluminum titanate doped NiO‐YSZ anodes was evaluated in the oxidized and reduced state of the material. Sample bars 25 × 5 × 2 mm were fabricated and tested in a three‐point bending apparatus and statistical analyzes of the collected data were performed. A remarkable enhancement of the flexural strength was found both for the reduced and oxidized state of the material when compared to the un‐doped samples. In both cases, the development of a secondary phase was observed proportional to the doping amount of aluminum titanate. Morphological analysis along with preliminary phase identification and suspected mechanisms for strength enhancement are presented and discussed.