Blister defect formation within partially stabilized zirconia film during constrained sintering

Hbaieb, Kais

doi:10.1007/s40145-015-0136-2

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…3 Yttria-stabilized zirconia (YSZ) is one of the most commonly used electrolyte materials for SOFC due to its good chemical stability, excellent mechanical properties, and high oxygen ionic conductivity. [4][5][6] However, the sintering temperature of YSZ is usually higher than 1500 • C, which increases the production cost. 5,7 Besides the high cost, the high sintering temperature is sometimes problematic.…”

Section: Introductionmentioning

confidence: 99%

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Controlled synthesis of Bi₂O₃–YSZ composite powders and their sintering behavior for high‐performance electrolytes

Tian

Liu

Zhang

et al. 2022

Int J Applied Ceramic Tech

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Bismuth oxide (Bi 2 O 3 ) is a promising additive to decrease the sintering temperature of yttria-stabilized zirconia (YSZ)-based electrolyte for solid oxide fuel cell application. However, Bi 2 O 3 tends to grow into large column bars (>50 µm) in a chemical coprecipitation method, which dramatically limits the mixing uniformity of Bi 2 O 3 and YSZ, even much worse than that of mechanical mixing. In this study, the reaction temperature was increased from room temperature to 90 • C to increase the number of nucleation during the violate reaction between Bi 3+ solution and YSZ suspension in NaOH. On this basis, the violence of the reaction was further moderated by adding half of NaOH first, then YSZ powders and the other half of an NaOH solution. The size of Bi 2 O 3 was further decreased to sub-micrometer and Bi 2 O 3 was homogeneously mixed with YSZ particles, even when its addition amount was as large as 20 mol%. These composite powders effectively promoted the sintering behavior of YSZ. The sintering temperature of YSZ was decreased to 900 and 1000 • C with 10 and 5 mol% Bi 2 O 3 doping, respectively. Increasing the doping ratio induced severe volatilization of Bi 2 O 3 and pore formation. Raising the sintering temperature (no more than 1200 • C) enhanced the doping effect of Bi 2 O 3 into the YSZ lattice but induced instability in the YSZ crystal structure.

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Section: Introductionmentioning

confidence: 99%

“…Solid oxide fuel cell (SOFC) has advantages of high energy conversion efficiency and no emission of environmental pollutants 3 . Yttria‐stabilized zirconia (YSZ) is one of the most commonly used electrolyte materials for SOFC due to its good chemical stability, excellent mechanical properties, and high oxygen ionic conductivity 4–6 …”

Section: Introductionmentioning

confidence: 99%

Controlled synthesis of Bi₂O₃–YSZ composite powders and their sintering behavior for high‐performance electrolytes

Tian

Liu

Zhang

et al. 2022

Int J Applied Ceramic Tech

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“…Residual stresses are developed during the manufacturing process of the cells due to the thermo-elastic mismatch between the cell layers [5][6][7][8][9][10][11]. These residual stresses can result in performance degradation as a result of delamination [11] or the formation of cracks in the cell layers [3,11] and in the extreme case may lead to the complete deterioration of the cell [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Potential Effect of Cell Shape and Size on the Residual Stress in Solid Oxide Fuel Cells

Azari

Abdoli

Torabi

et al. 2021

Preprint

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In the manufacturing process of solid oxide fuel cells (SOFCs), the residual stresses and curvature are developed in components due to the differences in material properties of cell layers. Significant residual stress may lead to the formation of cracks in the cell layers and facilitates cell fracture. In this work, the changes of the residual stress in the electrolyte of the anode-supported planar solid oxide fuel cells are experimentally determined at room temperature. The “sin2ψ” technique of X-ray diffraction method is employed to measure the residual stress in the half-cell samples. Several cells with different sizes and shapes are investigated to evaluate the potential impact of cell size and cell shape on the thermal residual stress. Because investigation on the changes of the residual stress and curvature state in the scaling up process of cell is crucial for commercial use. Values of about − 610 MPa are determined for an electrolyte layer on an oxidized ∼400µm thick anode substrate. The results reveal that in spite of the effect of size and shape on the radius of curvature, these parameters have no significant effect on the residual stress level.

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A review on failure mechanism of thermal barrier coatings and strategies to extend their lifetime

Mehboob

Liu

et al. 2020

Ceramics International

143

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Blister defect formation within partially stabilized zirconia film during constrained sintering

Cited by 4 publications

References 18 publications

Controlled synthesis of Bi₂O₃–YSZ composite powders and their sintering behavior for high‐performance electrolytes

Controlled synthesis of Bi₂O₃–YSZ composite powders and their sintering behavior for high‐performance electrolytes

Investigation on Potential Effect of Cell Shape and Size on the Residual Stress in Solid Oxide Fuel Cells

A review on failure mechanism of thermal barrier coatings and strategies to extend their lifetime

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Blister defect formation within partially stabilized zirconia film during constrained sintering

Cited by 4 publications

References 18 publications

Controlled synthesis of Bi2O3–YSZ composite powders and their sintering behavior for high‐performance electrolytes

Controlled synthesis of Bi2O3–YSZ composite powders and their sintering behavior for high‐performance electrolytes

Investigation on Potential Effect of Cell Shape and Size on the Residual Stress in Solid Oxide Fuel Cells

A review on failure mechanism of thermal barrier coatings and strategies to extend their lifetime

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Controlled synthesis of Bi₂O₃–YSZ composite powders and their sintering behavior for high‐performance electrolytes

Controlled synthesis of Bi₂O₃–YSZ composite powders and their sintering behavior for high‐performance electrolytes