Enhancing the long-term stability of Ag based seals for solid oxide fuel/electrolysis applications by simple interconnect aluminization

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

Standard

Enhancing the long-term stability of Ag based seals for solid oxide fuel/electrolysis applications by simple interconnect aluminization. / Si, Xiaoqing ; Cao, Jian; Ritucci, Ilaria; Talic, Belma; Feng, Jicai ; Kiebach, Wolff-Ragnar.

In: International Journal of Hydrogen Energy, Vol. 44, No. 5, 2019, p. 3063-3074.

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

Harvard

APA

CBE

MLA

Vancouver

Author

Bibtex

@article{6556b0c44c0b47e9823f70c02cb81223,
title = "Enhancing the long-term stability of Ag based seals for solid oxide fuel/electrolysis applications by simple interconnect aluminization",
abstract = "Ag-(0e8 mol{\%}) CuO is used to successfully join aluminized ferritic stainles ssteel interconnect to the ceria-gadolinia (CGO) barrier layer of a solid oxidefuel/electrolysis cell by reactive air brazing at 1000 _C in air. The wetting of Ag-CuO on CGO istailored by varying the CuO content. The effects of the CuO content on thejoint microstructure are discussed. The long-term stability of brazed joints is evaluated by aging in oxidizing (air) and reducing (4{\%} H2-50{\%} H2O-N2) atmospheres at 800 °C for 250 h. An Ag-2mol{\%} CuO braze results in the best joint stability during aging. Aluminization of the steel to create an alumina surface layer provides excellent protection of the steel both during the joining process and aging in the 2 atm. No degradation related to steel corrosion and outward diffusion of elements from the steel can be observed.",
keywords = "Reactive air brazing, Aluminization, AgeCuO braze, Solid oxide fuel cell, Solid oxide electrolysis cell, High temperature corrosion",
author = "Xiaoqing Si and Jian Cao and Ilaria Ritucci and Belma Talic and Jicai Feng and Wolff-Ragnar Kiebach",
year = "2019",
doi = "10.1016/j.ijhydene.2018.11.071",
language = "English",
volume = "44",
pages = "3063--3074",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Ltd",
number = "5",

}

RIS

TY - JOUR

T1 - Enhancing the long-term stability of Ag based seals for solid oxide fuel/electrolysis applications by simple interconnect aluminization

AU - Si, Xiaoqing

AU - Cao, Jian

AU - Ritucci, Ilaria

AU - Talic, Belma

AU - Feng, Jicai

AU - Kiebach, Wolff-Ragnar

PY - 2019

Y1 - 2019

N2 - Ag-(0e8 mol%) CuO is used to successfully join aluminized ferritic stainles ssteel interconnect to the ceria-gadolinia (CGO) barrier layer of a solid oxidefuel/electrolysis cell by reactive air brazing at 1000 _C in air. The wetting of Ag-CuO on CGO istailored by varying the CuO content. The effects of the CuO content on thejoint microstructure are discussed. The long-term stability of brazed joints is evaluated by aging in oxidizing (air) and reducing (4% H2-50% H2O-N2) atmospheres at 800 °C for 250 h. An Ag-2mol% CuO braze results in the best joint stability during aging. Aluminization of the steel to create an alumina surface layer provides excellent protection of the steel both during the joining process and aging in the 2 atm. No degradation related to steel corrosion and outward diffusion of elements from the steel can be observed.

AB - Ag-(0e8 mol%) CuO is used to successfully join aluminized ferritic stainles ssteel interconnect to the ceria-gadolinia (CGO) barrier layer of a solid oxidefuel/electrolysis cell by reactive air brazing at 1000 _C in air. The wetting of Ag-CuO on CGO istailored by varying the CuO content. The effects of the CuO content on thejoint microstructure are discussed. The long-term stability of brazed joints is evaluated by aging in oxidizing (air) and reducing (4% H2-50% H2O-N2) atmospheres at 800 °C for 250 h. An Ag-2mol% CuO braze results in the best joint stability during aging. Aluminization of the steel to create an alumina surface layer provides excellent protection of the steel both during the joining process and aging in the 2 atm. No degradation related to steel corrosion and outward diffusion of elements from the steel can be observed.

KW - Reactive air brazing

KW - Aluminization

KW - AgeCuO braze

KW - Solid oxide fuel cell

KW - Solid oxide electrolysis cell

KW - High temperature corrosion

U2 - 10.1016/j.ijhydene.2018.11.071

DO - 10.1016/j.ijhydene.2018.11.071

M3 - Journal article

VL - 44

SP - 3063

EP - 3074

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 5

ER -