Effects of sintering on the mechanical and ionic properties of ceria-doped scandia stabilized zirconia ceramic

Ramesh, S.; Ng, C. K.; Tan, C.Y.; Wong, Yew Hoong; Ching, C.Y.; Muchtar, Andanastuti; Somalu, Mahendra Rao; Chandran, Hari; Devaraj, Prathab

doi:10.1016/j.ceramint.2016.06.050

Cited by 17 publications

(8 citation statements)

References 23 publications

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“…S5 in the supplementary documents). The Young's modulus of pristine 0.2 mol% MgO and 0.2 mol% CaO co-doped 10Ce-TZPs were measured to be 205±1 GPa, a value comparable and in agreement with previous results on similar fully dense zirconia ceramics [74][75][76]. Most important was that the Young's moduli were the same before and after plastic deformation for both 0.2 mol% MgO and 0.2 mol% CaO co-doped 10Ce-TZPs (Table 3), in agreement with that no obvious cracking was found in the transformation zone.…”

Section: Onset Of Inelastic Deformation By Load-unload Testing and Yo...supporting

confidence: 90%

Tough and damage-tolerant monolithic zirconia ceramics with transformation-induced plasticity by grain-boundary segregation

Tunca

Meerbeek

et al. 2023

Journal of the European Ceramic Society

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Section: Onset Of Inelastic Deformation By Load-unload Testing and Yo...supporting

confidence: 90%

Tough and damage-tolerant monolithic zirconia ceramics with transformation-induced plasticity by grain-boundary segregation

Tunca

Meerbeek

et al. 2023

Journal of the European Ceramic Society

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“…The ionic conductivity of ScCeSZ increases with average grain size, hence, the half‐cell sintering temperature of 1400°C for 4 h was chosen as it produced a dense electrolyte layer with the largest grain size 23 . These results are corroborated by other researchers 24 …”

Section: Resultssupporting

confidence: 66%

Five‐layer reverse tape casting of IT‐SOFC

Snowdon

Jiang

Steinberger‐Wilckens

2021

Int J Applied Ceramic Tech

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Tape casting is a well‐established method for manufacturing thin ceramic layers with controllable thickness and porosity. This study investigates the potential of 10Sc1CeSZ material for the electrolyte and anode layers for intermediate‐temperature solid oxide fuel cells (IT‐SOFC) in an anode‐supported cell (ASC) geometry. In order to use La0.6Sr0.4Co0.2Fe0.8 Oxide (LSCF) cathode material, a Gd0.2Ce0.8 Oxide (GDC) barrier layer is needed; however, thermal expansion coefficient mismatch results in delamination of the GDC from the electrolyte during high temperature sintering when fabricated by conventional tape casting procedures. For the first time, ASCs have been manufactured by a five‐layer tape casting technique; barrier layer, novel composite layer, electrolyte, anode functional layer, and anode substrate. Ni‐ScCeSZ composite cells were tested between 650 and 800°C in H2:N2 fuel (85% H2) on the anode and air on the cathode to yield a maximum power density of .46 W/cm2. These results demonstrate the feasibility of this new five‐layer tape casting technique to produce IT‐SOFC.

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“…109 Other researchers investigated the microwave techniques used to produce the ScSZ electrolyte. For example, Ramesh et al 110 prepared a Ce-doped ScSZ electrolyte with a grain size of 2 μm using a microwave technique with a homogeneous and dense structure to maintain the mechanical properties in thick size. The low sintering temperature caused the relaxation times of the grain growth grain refinement to reduce and produced highly dense samples with high mechanical and hardness stability.…”

Section: Thermal and Mechanical Stabilitymentioning

confidence: 99%

Advanced modification of scandia‐stabilized zirconia electrolytes for solid oxide fuel cells application—A review

Zakaria

Kamarudin

2020

Intl J of Energy Research

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Solid oxide fuel cells (SOFCs) are recognized as an energy generation device with high power density and energy conversion efficiency, low noise, low greenhouse gas emissions, positive environmental effect, and high fuel consumption versatility. Nevertheless, the high operating temperature of SOFCs has restricted the development in various applications due to challenges in material compatibility and working process. To address these issues, scandiastabilized zirconia (ScSZ) electrolytes are commonly utilized to explore its potentials as a solid electrolyte toward lowering the operating temperature due to high conductivity properties at low-to-intermediate temperature conditions. Thus, this paper provides an advanced modification of ScSZ electrolytes in SOFCs toward lowering the operating temperature. This review presents the potential properties and the progress modification of ScSZ electrolyte including challenges, and advances, summary, and future perspectives in the low-tointermediate operating temperature of SOFCs. This review can serve as a first reference for identifying specific parameters and prospective studies to enhance the properties of ScSZ electrolytes for the application of SOFCs. Based on the literature review, there are no previous review works that have been published on the modification of ScSZ electrolytes.

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Effects of sintering on the mechanical and ionic properties of ceria-doped scandia stabilized zirconia ceramic

Cited by 17 publications

References 23 publications

Tough and damage-tolerant monolithic zirconia ceramics with transformation-induced plasticity by grain-boundary segregation

Tough and damage-tolerant monolithic zirconia ceramics with transformation-induced plasticity by grain-boundary segregation

Five‐layer reverse tape casting of IT‐SOFC

Advanced modification of scandia‐stabilized zirconia electrolytes for solid oxide fuel cells application—A review

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