Yttria-stabilized zirconia (YSZ) is one of the primary choices for the electrolyte material in solid oxide fuel cells (SOFC), due to its excellent ionic conductivity at high temperatures. Nevertheless, such performance is usually limited by the ionic conductivity at grain boundaries, which is at least two orders of magnitude lower than that of bulk [1]. As a result, many studies have been perfo...

The electrical conductivity of dense and nanoporous zirconia-based thin fi lms is compared to results obtained on bulk yttria stabilized zirconia (YSZ) ceramics. Different thin fi lm preparation methods are used in order to vary grain size, grain shape, and porosity of the thin fi lms. In porous fi lms, a rather high conductivity is found at room temperature which decreases with increasing temp...

Abstract Yttria-stabilized zirconia (YSZ) fiber composites are highly efficient thermal insulating materials; however, the poor shock resistance limits their versatile applications. In present study, YSZ was mixed directly with Al2TiO5 fiber, which had an extremely low expansion coefficient, to prepare YSZ−Al 2 TiO 5 (ZAT) by compression molding and heat treatment. The minimum coefficient of pr...

Air plasma spray (APS) process is used to produce high density and flowability spherical powders. Phase transformation that occurred in this process isn’t well known. In this paper, the YSZ powders have been sprayed in water to investigate the morphology changes and phase transformations via air plasma spray (APS) method. Phase analysis of powders was examined by XRD and the crystallite size an...

Yttria-stabilized zirconia (YSZ, ZrO2:Y2O3) thin films were deposited by reactive DC magnetron sputtering with a high deposition rate from a metallic target of Zr/Y in an argon/oxygen atmosphere. Plasma parameters and composition analysis of the gas phase reveal that the sputtering process in the “compound” mode is reached for a 2.5 sccm oxygen flow rate. Deposition onto silicon in “metal” mode...

Porous composite anodes consisting of a yttria-stabilized zirconia (YSZ) backbone that was impregnated with CeO2 and various amounts of metallic components including Cu, Co and Pd were fabricated. The performance of these anodes was then tested in a solid oxide water electrolysis cell under conditions where the anode was exposed to the reducing gasses H2, CH4 and CO. The reducing gasses were us...

Pr1−xCaxBa2Cu3O7−δ(x ≈0.5) thin films have been grown on SrTiO3 and YSZ substrates by the pulsed laser ablation. The substrate temperature dependence of orientation and superconducting poperties were systematically studied. Good quality c and a-axis orientated films can be obtained on SrTiO3 via changing the substrate temperature solely. On YSZ, films with good c-axis orientation can be grown, ...

Reversible solid oxide cells (rSOC) can convert excess electricity to valuable fuels in electrolysis cell mode (SOEC) and reverse the reaction fuel (SOFC). In this work, a five – rSOC short stack, integrating electrode (Ni-YSZ) supported (Ni-YSZ || YSZ | CGO LSC-CGO) with an active area of 100 cm2, is tested for cyclic durability. The gases H2/N2:50/50 H2/H2O:20/80 SOFC SOEC mode, respectively,...

In this study, nickel oxide–Y2O3-doped ZrO2 (NiO-YSZ) composite powder as an anode material was synthesized using a cost-effective combustion method for high-temperature solid oxide fuel cell (SOFC). Further, the effects of sintering temperatures (1200, 1300, and 1400 °C) were studied its properties in relation to SOFC performance. The prepared sintered NiO-YSZ materials characterized their sur...