@inproceedings{34ce02bb0f41406989861f600136f91f,
title = "Numerical modeling of cathode contact material densification",
abstract = "Numerical modeling was used to simulate the constrained sintering process of the cathode contact layer during assembly of solid oxide fuel cells (SOFCs). A finite element model based on the continuum theory for sintering of porous bodies was developed and used to investigate candidate low-temperature cathode contact materials. Constitutive parameters for various contact materials under development were estimated from dilatometry screening tests, and the influence of processing time, processing temperature, initial grain size, and applied compressive stress on the free sintering response was predicted for selected candidate materials. The densification behavior and generated stresses within a 5-cell planar SOFC stack during sintering, high temperature operation, and room temperature shutdown were predicted. Insufficient constrained densification was observed in the stack at the proposed heat treatment, but beneficial effects of reduced grain size, compressive stack preload, and reduced thermal expansion coefficient on the contact layer densification and stresses were observed.",
keywords = "Cathode, Densification, Modeling, SOFC",
author = "Khaleel, {M. A.} and Koeppel, {Brian J.} and Stephens, {Elizabeth V.}",
year = "2015",
doi = "10.1002/9781119090427.ch30",
language = "English",
series = "Proceedings of the TMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems, MEMA 2015",
publisher = "John Wiley and Sons Inc.",
pages = "295--305",
editor = "Ibrahim Karaman and Raymundo Arroyave and Eyad Masad and Eyad Masad",
booktitle = "Proceedings of the TMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems, MEMA 2015",
note = "TMS Middle East - Mediterranean Materials Congress on Energy and Infrastructure Systems, MEMA 2015 ; Conference date: 11-01-2015 Through 14-01-2015",
}
