Electrical conductivity of (ZrO2)0.85(CeO2)0.12 (Y2O3)0.03

Patil, D.S.; Venkatramani, N.; Rohatgi, V. K.

doi:10.1007/bf00551320

Cited by 11 publications

(2 citation statements)

References 8 publications

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“…This motivates a transition to hot electrodes with direct exposure to the plasma, which limits materials to refractory metals and high temperature ceramics [1]. There are a number of oxides which can perform as conductors at MHD operating conditions, but the two of greatest interest during initial MHD work were zirconia-based and lanthanum chromate-based oxides [6][7][8][9][10][11][12][13][14][15]. Zirconia is stable in a monoclinic phase, which is generally a poor conductor, but rare earths and group IV fluorites stabilize the system in the cubic fluorite phase, which shows to be a good electrical conductor [16].…”

Section: Introductionmentioning

confidence: 99%

Electrical properties of gadolinia-doped ceria for electrodes for magnetohydrodynamic energy systems

et al. 2020

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High temperature conducting ceramics are of current interest for use as electrode materials for magnetohydrodynamic (MHD) power generation systems for their high conductivity values and their excellent stability under extreme conditions including operating temperatures above 2000 °C. Ceria doped with Gd (GDC) has been extensively studied for intermediate temperature applications and shows promise as an efficient electrode material. A summary of the current understanding of the electrical properties of GDC is provided with an emphasis on the higher temperature limits. Experiments to further validate the conclusions drawn in the literature review confirm that with electrical conductivities near 10 S/m at 1100 °C make GDC a good candidate electrode material for an MHD power generator.

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Section: Introductionmentioning

confidence: 99%

Electrical properties of gadolinia-doped ceria for electrodes for magnetohydrodynamic energy systems

et al. 2020

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“…Therefore, when the research on the ternary system of zirconia materials is explored, Y 2 O 3 generally serves as one of the components. With the introduction of aliovalent oxides, such as CeO 2 and TiO 2 , the electronic conductivity is enhanced; as a result, the total conductivity is enhanced too [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Electrical Conductivity of Mixed Conductors (YO1.5)x-(CeO2)y-(ZrO2)1-x-y

Zhou

Fan

Tang

et al. 2007

KEM

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The Y2O3-ZrO2 binary system ceramic is considered to be most developed in application to the ZrO2-based materials. A cubic fluorite structure is generally achieved, as the metal ion of the additive (Y) takes place of the Zr4+ and oxygen ion vacancies are produced in the lattice to maintain the charge balance. This leads to almost totally ionic conductivity. The introduction of changeable valued CeO2 can further improve the total electronic conductivity through the defect equilibrium reaction between tetravalent Ce4+ and trivalent Ce3+ at high temperature and reducing atmosphere. In this study, solid phase synthesis method was employed for the preparation of (YO1.5)x-(CeO2)0.08-(ZrO2)0.9-x and (YO1.5)0.05-(CeO2)y- (ZrO2)0.95-y ceramics, while four probe DC conductivity measurement method was also applied under the temperature between 300 to 800°C. The results prove that the concentration of Y3+ is the main contribution of the electrical conductivity at low temperature.

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Preparation and Electrical Characterization of Ruthenia-Doped Yttria-Stabilized Zirconia Ceramics

Colomer

Jurado²

1998

Journal of Solid State Chemistry

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Electrical conductivity of (ZrO2)0.85(CeO2)0.12 (Y2O3)0.03

Cited by 11 publications

References 8 publications

Electrical properties of gadolinia-doped ceria for electrodes for magnetohydrodynamic energy systems

Electrical properties of gadolinia-doped ceria for electrodes for magnetohydrodynamic energy systems

Electrical Conductivity of Mixed Conductors (YO<sub>1.5</sub>)<sub>x</sub>-(CeO<sub>2</sub>)<sub>y</sub>-(ZrO<sub>2</sub>)<sub>1-x-y</sub>

Preparation and Electrical Characterization of Ruthenia-Doped Yttria-Stabilized Zirconia Ceramics

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