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Frictional forces in an SOFC stack with sliding seals

Journal Article:

Abstract

The detrimental thermal stresses in planar SOFC stacks can be reduced using sliding seals. In the proposal planar stack the electrolyte film is sandwiched by YSZ support rings to release the thermal stresses. In order to estimate the strength of the support ring, the frictional forces between heat resistant alloy and YSZ were measured at 900{degree}C. The coefficient of friction between Hastelloy X and YSZ increased when they were measured lifter 144h heating. However, the coefficient of friction between HA-214 and YSZ did not increase. The measurement and a calculation of the stresses in the support rings led the result that a thickness of 0.6mm was necessary for 200mm diameter support rings under a stack pressure of 0.1kgcm{sup -2}. 6 refs., 9 figs., 1 tab.
Authors:
Yamazaki, T; Oishi, N; Namikawa, T; Yamazaki, Y [1] 
  1. Tokyo Institute of Technology, Tokyo (Japan)
Publication Date:
Jun 05, 1996
Product Type:
Journal Article
Reference Number:
SCA: 300503; PA: NEDO-96:913041; EDB-96:149811; SN: 96001672527
Resource Relation:
Journal Name: Denki Kagaku Oyobi Kogyo Butsuri Kagaku (Electrochemistry and Industrial Physical Chemistry); Journal Volume: 64; Journal Issue: 6; Other Information: PBD: 5 Jun 1996
Subject:
30 DIRECT ENERGY CONVERSION; SEALS; SLIDING FRICTION; SOLID ELECTROLYTE FUEL CELLS; PLATES; OXIDES; STACKS; STRESSES; YTTRIUM OXIDES; ZIRCONIUM OXIDES; CERMETS; SUPPORTS; RINGS; THERMAL STRESSES; FRICTION FACTOR
OSTI ID:
375516
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Journal ID: DKOKAZ; ISSN 0366-9297; TRN: 96:913041
Submitting Site:
NEDO
Size:
pp. 634-637
Announcement Date:

Journal Article:

Citation Formats

Yamazaki, T, Oishi, N, Namikawa, T, and Yamazaki, Y. Frictional forces in an SOFC stack with sliding seals. Japan: N. p., 1996. Web.
Yamazaki, T, Oishi, N, Namikawa, T, & Yamazaki, Y. Frictional forces in an SOFC stack with sliding seals. Japan.
Yamazaki, T, Oishi, N, Namikawa, T, and Yamazaki, Y. 1996. "Frictional forces in an SOFC stack with sliding seals." Japan.
@misc{etde_375516,
title = {Frictional forces in an SOFC stack with sliding seals}
author = {Yamazaki, T, Oishi, N, Namikawa, T, and Yamazaki, Y}
abstractNote = {The detrimental thermal stresses in planar SOFC stacks can be reduced using sliding seals. In the proposal planar stack the electrolyte film is sandwiched by YSZ support rings to release the thermal stresses. In order to estimate the strength of the support ring, the frictional forces between heat resistant alloy and YSZ were measured at 900{degree}C. The coefficient of friction between Hastelloy X and YSZ increased when they were measured lifter 144h heating. However, the coefficient of friction between HA-214 and YSZ did not increase. The measurement and a calculation of the stresses in the support rings led the result that a thickness of 0.6mm was necessary for 200mm diameter support rings under a stack pressure of 0.1kgcm{sup -2}. 6 refs., 9 figs., 1 tab.}
journal = {Denki Kagaku Oyobi Kogyo Butsuri Kagaku (Electrochemistry and Industrial Physical Chemistry)}
issue = {6}
volume = {64}
journal type = {AC}
place = {Japan}
year = {1996}
month = {Jun}
}