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Ion Irradiation Effects in Solid Oxide Fuel Cell Electrolytes

Published online by Cambridge University Press:  26 February 2011

Jeremy Cheng,
Rojana Pornprasertsuk,
Yuji Saito and
Fritz B. Prinz
Jeremy Cheng
Affiliation:
Rapid Prototyping Laboratory, Stanford University, Building 530, Room 226, Stanford, CA 94305, U.S.A.
Rojana Pornprasertsuk
Affiliation:
Rapid Prototyping Laboratory, Stanford University, Building 530, Room 226, Stanford, CA 94305, U.S.A.
Yuji Saito
Affiliation:
Rapid Prototyping Laboratory, Stanford University, Building 530, Room 226, Stanford, CA 94305, U.S.A.
Fritz B. Prinz
Affiliation:
Rapid Prototyping Laboratory, Stanford University, Building 530, Room 226, Stanford, CA 94305, U.S.A.
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Abstract

Single crystal Ytrria-stabilized Zirconia was irradiated with Xe2+ and Xe3+ ions at 320 and 450 keV over a range of doses from 1013 to 1016 ions/cm2. Damage appears as a 150 nm surface layer with a dense dislocation network. The X-ray diffraction pattern shows an increasing lattice expansion with increasing dose that reaches a saturation point. Ion irradiation increases the surface conductance of the material; this effect is removed with certain post-treatments. Preliminary isotope depth profiling indicates enhanced ion diffusion in the damaged layer.

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