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Title: New sealing concept for planar solid oxide fuel cells

Abstract

Presented in this paper are results obtained on a new sealing concept for planar solid oxide fuel cells (pSOFCs). By employing a plastically deformable metal membrane as the key sealing element, this design should display a quasi-dynamic response to thermally or mechanically induced stresses. That is, the membrane is designed to readily yield or deform in response to the applied stress and thereby mitigate its transfer to the adjacent ceramic and metal components, while at the same time remaining adherent to both sealing surfaces (non-sliding). Described here are details of the new seal, including a discussion of design issues, initial proof-of-principle results on small test specimens, and a preliminary finite element analyses aimed at scaling the seal to the size and geometry required in a prototypic pSOFC stack.

Authors:
; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
961699
Report Number(s):
PNNL-SA-49419
AA2530000
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Materials Engineering and Performance, 15(4):427-432
Country of Publication:
United States
Language:
English
Subject:
SOFC, sealing, compliant seal

Citation Formats

Weil, K. Scott, Hardy, John S., and Koeppel, Brian J. New sealing concept for planar solid oxide fuel cells. United States: N. p., 2006. Web. doi:10.1361/105994906X117233.
Weil, K. Scott, Hardy, John S., & Koeppel, Brian J. New sealing concept for planar solid oxide fuel cells. United States. doi:10.1361/105994906X117233.
Weil, K. Scott, Hardy, John S., and Koeppel, Brian J. Sat . "New sealing concept for planar solid oxide fuel cells". United States. doi:10.1361/105994906X117233.
@article{osti_961699,
title = {New sealing concept for planar solid oxide fuel cells},
author = {Weil, K. Scott and Hardy, John S. and Koeppel, Brian J.},
abstractNote = {Presented in this paper are results obtained on a new sealing concept for planar solid oxide fuel cells (pSOFCs). By employing a plastically deformable metal membrane as the key sealing element, this design should display a quasi-dynamic response to thermally or mechanically induced stresses. That is, the membrane is designed to readily yield or deform in response to the applied stress and thereby mitigate its transfer to the adjacent ceramic and metal components, while at the same time remaining adherent to both sealing surfaces (non-sliding). Described here are details of the new seal, including a discussion of design issues, initial proof-of-principle results on small test specimens, and a preliminary finite element analyses aimed at scaling the seal to the size and geometry required in a prototypic pSOFC stack.},
doi = {10.1361/105994906X117233},
journal = {Journal of Materials Engineering and Performance, 15(4):427-432},
number = ,
volume = ,
place = {United States},
year = {Sat Apr 08 00:00:00 EDT 2006},
month = {Sat Apr 08 00:00:00 EDT 2006}
}