Formation of YSZ-SDC solid solution in a nanocrystalline heterophase system and its effect on the electrical conductivity

Matthew Price; Junhang Dong; Xuehong Gu; Scott A. Speakman; E. Andrew Payzant; Tina M. Nenoff

doi:10.1111/j.1551-2916.2005.00389.x

Formation of YSZ-SDC solid solution in a nanocrystalline heterophase system and its effect on the electrical conductivity

Matthew Price, Junhang Dong, Xuehong Gu, Scott A. Speakman, E. Andrew Payzant, Tina M. Nenoff

Materials Engineering

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	1812-1818
Number of pages	7
Journal	Journal of the American Ceramic Society
Volume	88
Issue number	7
DOIs	https://doi.org/10.1111/j.1551-2916.2005.00389.x
State	Published - Jul 2005

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abstract = "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.",

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AU - Price, Matthew

AU - Dong, Junhang

AU - Gu, Xuehong

AU - Speakman, Scott A.

AU - Payzant, E. Andrew

AU - Nenoff, Tina M.

PY - 2005/7

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AB - 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.

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Formation of YSZ-SDC solid solution in a nanocrystalline heterophase system and its effect on the electrical conductivity

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