Supporting research for MSOFC development
- Allied-Signal Aerospace Co., Torrance, CA (United States). AiResearch Los Angeles Div.
Argonne National Laboratory is providing support to Allied Signal Aerospace Company in the development of the monolithic solid oxide fuel cell (MSOFC). During the current reporting period, ANL`s effort was concentrated on exploring the co-sintering of anode/interconnect/cathode trilayers, investigating the interfacial electrochemistry, and performing stress analysis. Co-sintering of the anode/interconnect/cathode trilayer is an important step in the manufacturing of multicell MSOFC structures. The interconnect, separates fuel and oxidant streams of adjacent cells and must therefore be dense. It also connects the individual cells mechanically and electrically, and also requiring low electrical resistances. The difficulty in co-sintering anode/interconnect/cathode trilayers is matching the sintering characteristics of the three layers. The interconnect material, strontium-doped lanthanum chromite, is typically sintered to high density at temperatures exceeding 1600{degrees}C and low oxygen partial pressures. Under these conditions the lanthanum manganite air electrode decomposes. To make trilayers, conditions must be found for obtaining dense lanthanum chromite in the 1300--1400{degrees}C range. Earlier attempts to use sintering aids in the lanthanum chromite were unsuccessful. During this reporting period, several dopants were explored.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States); Allied-Signal Aerospace Co., Torrance, CA (United States). AiResearch Los Angeles Div.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC21-89MC26006; W-31109-ENG-38
- OSTI ID:
- 10179313
- Report Number(s):
- DOE/MC/26006-92/C0057; ANL/CP-76344; CONF-920748-17; ON: DE92040256
- Resource Relation:
- Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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