Premium
Formation of YSZ–SDC Solid Solution in a Nanocrystalline Heterophase System and Its Effect on the Electrical Conductivity
Author(s) -
Price Matthew,
Dong Junhang,
Gu Xuehong,
Speakman Scott A.,
Payzant E. Andrew,
Nenoff Tina M.
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00389.x
Subject(s) - yttria stabilized zirconia , nanocrystalline material , solid solution , materials science , electrical resistivity and conductivity , cubic zirconia , sintering , chemical engineering , conductivity , composite material , metallurgy , ceramic , nanotechnology , chemistry , electrical engineering , engineering
The stability of an yttria‐stabilized zirconia and samaria‐doped ceria (YSZ–SDC) nanocrystalline heterophase system was studied with in situ high‐temperature X‐ray diffraction during a simulated sintering program. Formation of YSZ–SDC solid solution in the nanocrystalline system was found to start at a low temperature between 900° and 950°C. The analysis of lattice parameters as a function of temperature suggested that YSZ and SDC species diffused mutually during the formation of solid solution. The electrical conductivity of the YSZ–SDC solid solution was significantly lower than that of the YSZ and SDC.