Ionic conductivity of plasma-sprayed nanocrystalline yttria-stabilized zirconia electrolyte for solid oxide fuel cells

    Authors

    Y. Chen; S. Omar; A. K. Keshri; K. Balani; K. Babu; J. C. Nino; S. Seal;A. Agarwal

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Scr. Mater.

    Keywords

    Yttria-stabilized zirconia; Electrolyte; Plasma spray; Ionic; conductivity; MICROSTRUCTURE; DIFFUSION; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering

    Abstract

    Nanocrystalline 10 mol.% yttria-stabilized zirconia (YSZ) electrolyte was synthesized via the plasma spray technique. The ionic conductivity was measured using AC impedance spectroscopy within the temperature range 350-600 degrees C in air. The measured total 17 ionic conductivity of plasma-sprayed YSZ electrolyte is similar to 2.3 times higher than that of sintered YSZ electrolyte at 600 degrees C in air. The improvement in ionic conductivity is ascribed to the nanocrystalline grain size and siliceous free grain boundary with grain-to-grain contact. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

    Journal Title

    Scripta Materialia

    Volume

    60

    Issue/Number

    11

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    1023

    Last Page

    1026

    WOS Identifier

    WOS:000265359900026

    ISSN

    1359-6462

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