Media type: E-Article Title: Enhanced 95Zr diffusion in grain boundaries of nano‐crystalline ZrO2·9.5 mol% Y2O3 Contributor: Drings, Harald; Brossmann, Ulrich; Carstanjen, Heinz‐Dieter; Szökefalvi‐Nagy, Ágnes; Noll, Cornelia; Schaefer, Hans‐Eckhardt imprint: Wiley, 2009 Published in: physica status solidi (a) Language: English DOI: 10.1002/pssa.200824077 ISSN: 1862-6300; 1862-6319 Keywords: Materials Chemistry ; Electrical and Electronic Engineering ; Surfaces, Coatings and Films ; Surfaces and Interfaces ; Condensed Matter Physics ; Electronic, Optical and Magnetic Materials Origination: Footnote: Description: <jats:title>Abstract</jats:title><jats:p>The <jats:sup>95</jats:sup>Zr cation self‐diffusivity in fully‐dense, nanocrystalline cubic ZrO<jats:sub>2</jats:sub>·9.5 mol% Y<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> (n‐YSZ, mean grain size 50 nm) has been studied by tracer self‐diffusion and precision‐grinding sectioning. In the temperature range of 897 °C to 937 °C the <jats:sup>95</jats:sup>Zr diffusion coefficient in grain boundaries was found to be about 7 orders of magnitude higher than in single crystals of similar composition. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)</jats:p>