Solid-state reactive sintering mechanism for large-grained yttrium-doped barium zirconate proton conducting ceramics

Tong, Jianhua; Clark, Daniel; Bernau, Lisa; Sanders, Michael; O’Hayre, Ryan

doi:10.1039/c0jm00381f

Cited by 197 publications

(147 citation statements)

References 30 publications

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“…4. The micro structure investigation of the ceramic compacts showed results consistent with the sintered powder through the bulk transport mechanism result in net particle movement leading to the densification [7,11,12].Which shows a significant increase in both hardness and compression strength especially at the combination Y 2 O 3 -3 wt% V 2 O 5 , as shown in Table 1. And the same effect can be identify for the brake down voltage and dialectical strength having a maximum value of 22.5 (Kv), and 4.59 (Kv/mm), respectively, as shown in Table 2.…”

Section: Methodssupporting

confidence: 51%

Effect of V2O5 Additives to the Sintering of Y2O3

Issa

Majeed

Hasan

2015

Springer Proceedings in Physics

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The effect of sintering additive on the microstructure development of yttrium oxide was investigated at different sintering temperature (700, 900, 1100, 1300°C) under static air. Different combinations of yttrium oxide with V 2 O 5 were used as a ceramic composite material. X-ray diffraction, differential thermal analysis (DTA) were investigated and microstructure of resulting compacts were characterized by, using scanning electron microscopy, porosity and sintering density reflected the optimum values for the combination Y 2 O 3 -3 wt% V 2 O 5 sintered at temperature 1300°C. Mechanical properties representative by hardness and compression were tested. Brake down voltage and dielectric strength were measured for all compacted samples sintered at 1300°C.

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Section: Methodssupporting

confidence: 51%

Effect of V2O5 Additives to the Sintering of Y2O3

Issa

Majeed

Hasan

2015

Springer Proceedings in Physics

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“…3. This result is coincident with the rapid densification and grain growth of Y-doped barium zirconate pellets with 2 wt.% sintering aid of NiO at temperatures above 1350 °C, reported by Tong et al [37].…”

Section: Ni Diffusion From Ni Cermet Anode To Barium Cerate Electrolymentioning

confidence: 54%

Performance and stability of proton conducting solid oxide fuel cells based on yttrium-doped barium cerate-zirconate thin-film electrolyte

Yoo

Lim

2013

Journal of Power Sources

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1016/j.jpowsour.2012.11.094Journal of Power Sources, 229, pp. 48-57, 2012-11-30 Performance and stability of proton conducting solid oxide fuel cells based on yttrium-doped barium cerate-zirconate thin-film electrolyte Yoo, Yeong; Lim, Nguon . The open circuit voltages were around 1.12-1.13 V at 600 C indicating negligible gas leakage or mixed conduction through the electrolyte. The maximum power density of 493 mW cm -2 was obtained at 600 C and 0.7 V under air as the oxidant gas and humid 75% H 2 in N 2 (2.76% H 2 O) as the fuel gas at a gas flow rate of 100 ml min -1. The area specific resistance of an anode supported button cell of BSCF-BCZY // BCZY // NiO-BCZY in fuel cell mode was about 0.46 cm 2 and in the electrolysis mode was 0.26 cm 2 at 600 °C, indicating efficient reversible SOFCs. The single cell performance was stable for over 600 h at 600 C under humid 75% H 2 in N 2 (2.76% H 2 O) as the fuel gas and air as the oxidant gas. The stability of BCZY electrolyte in water-containing atmospheres was investigated by exposing sintered BCZY pellets to humid air (2.76% H 2 O) at 200 C for 24 h or soaking them in boiling water for 3 h.

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“…(Narendar et al, 2013;Magrez & Schober, 2004;Yamazaki, Hernandez-Schanchez, & Haile, 2010). Also, the presence of BaY 2 NiO 5 impurity phase was found during synthesis of Ni-BaZr 1-x Y x O 3-δ composite anodes prepared through nitrate-based combustion method, and when Ni was used as a sintering aid for doped-BaZrO 3 Babilo & Haile, 2005;Magrez & Schober, 2004;Tong, Clark, Bernau, Sanders, & O'Hayre, 2010;. Literature studies have suggested that the impurity phase BaY 2 NiO 5 form at temperatures above 900 ºC, and remains even at high temperatures of 1500 ºC .…”

Section: Materials Preparation and Experimental Proceduresmentioning

confidence: 97%

Ni-Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-Delta Anode Composites for Proton Conducting Solid Oxide Fuel Cells (H-SOFCs)

Singh¹,

Baral²,

Thangadurai³

2016

JMSR

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In this paper, we report the electrochemical properties of Ni-Ba 0.5 Sr 0.5 Ce 0.6 Zr 0.2 Gd 0.1 Y 0.1 O 3-δ (BSCZGY) anode composites in 3% H 2 O-H 2 for proton conducting solid oxide fuel cells (H-SOFCs). Ni-BSCZGY composites with volume ratio of 30:70, 40:60, and 50:50 were synthesised through mechanical mixing and combustion methods. In combustion method, auto-ignition step led to brown coloured ash, which was calcined at 1000

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Solid-state reactive sintering mechanism for large-grained yttrium-doped barium zirconate proton conducting ceramics

Cited by 197 publications

References 30 publications

Effect of V2O5 Additives to the Sintering of Y2O3

Effect of V2O5 Additives to the Sintering of Y2O3

Performance and stability of proton conducting solid oxide fuel cells based on yttrium-doped barium cerate-zirconate thin-film electrolyte

Ni-Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-Delta Anode Composites for Proton Conducting Solid Oxide Fuel Cells (H-SOFCs)

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