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Tape Casting and Sintering of Strontium‐Doped Lanthanum Chromite for a Planar Solid Oxide Fuel Cell Bipolar Plate
Author(s) -
Tai LoneWen,
Lessing Paul A.
Publication year - 1991
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1991.tb07311.x
Subject(s) - sintering , lanthanum , chromite , materials science , strontium , solid oxide fuel cell , tape casting , oxide , metallurgy , doping , composite material , inorganic chemistry , chemistry , electrolyte , electrode , optoelectronics , organic chemistry
Nonagglomerated strontium‐doped lanthanum chromite powders were prepared by a modified Pechini resinintermediate process and tape cast to form bipolar plates for a planar solid oxide fuel cell. An air‐sintering technique for the strontium‐doped lanthanum chromite was developed, which involved placing the green tape between Cr 2 O 3 ‐fired plates. The sintering process was found to be diffusion controlled, with densification beginning at the surface and proceeding to the interior. A bipolar plate of 2‐mm thickness was fired to more than 93.5% theoretical density when fired at 1670°C for 7 h.