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Preparation of crack‐free nano‐crystalline yttria‐stabilized zirconia
Author(s) -
Drings Harald,
Brossmann Ulrich,
Schaefer HansEckhardt
Publication year - 2007
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200600017
Subject(s) - yttria stabilized zirconia , sintering , cubic zirconia , materials science , compaction , porosity , nano , oxide , chemical engineering , work (physics) , metallurgy , composite material , ceramic , mechanical engineering , engineering
In recent research and development, yttria‐stabilized zirconia have become increasingly important for many industrial applications such as gas sensors and solid oxide fuel cells. In many of these applications, the suppression of uncontrolled gas transport due to porosity or cracks is essential. In this work, the influence of the sintering parameters on the crack formation in n‐ZrO 2 ·9.5 mol% Y 2 O 3 , manufactured by room‐temperature compaction of sputtered ZrY nanocrystallites with subsequent oxidation and sintering, was studied. A procedure that enables the production of nearly crack‐free fully dense samples is presented. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)