Behavior of implanted strontium in yttria-stabilized zirconia

Journal Article · Mon Apr 23 04:00:00 EDT 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2713127· OSTI ID:20971872

Zhu, S; Wang, S X; Wang, L M; Ewing, R C; Zu, X T ^[1]

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1. Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109-2104 (United States) and Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109-2104 (United States)

Yttria-stabilized zirconia (YSZ) is one of the promising candidates for application in the inert matrix fuel. This letter presents the effects of fission product strontium incorporation in the YSZ microstructure. The strontium ions were implanted at room temperature to a dose of 1x10{sup 17} ions/cm{sup 2} and that was followed by subsequently annealing at 1000 deg. C for 1-3 h. Transmission electron microscopy (TEM) was utilized to characterize the microstructure evolution after the implantation and/or annealing. No amorphization was observed in the YSZ matrix with a damage level of 200 dpa (displacements per atom). A layer of nanoscale strontium zirconate perovskite (SrZrO{sub 3}) precipitates formed in strontium-ion implanted YSZ single crystals after the annealing. Cross-sectional TEM revealed the crystalline particles of {approx}15 nm in size and they are crystallographically highly oriented with the YSZ matrix. The orientation relationship between the matrix and the precipitates has been determined as <011>{sub YSZ}(parallel sign)<111>{sub SrZrO{sub 3}}, (200){sub YSZ}(parallel sign)(110){sub SrZrO{sub 3}}. The interface is composed of misfit dislocations with b=1/2<200>{sub YSZ}.

• OSTI ID: 20971872
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 17 Vol. 90; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMORPHOUS STATE
ANNEALING
ATOMIC DISPLACEMENTS
DISLOCATIONS
GRAIN BOUNDARIES
ION BEAMS
ION IMPLANTATION
MONOCRYSTALS
NANOSTRUCTURES
PARTICLES
PEROVSKITE
PRECIPITATION
STRONTIUM
STRONTIUM IONS
TEMPERATURE RANGE 0273-0400 K
TRANSMISSION ELECTRON MICROSCOPY
YTTRIUM OXIDES
ZIRCONATES
ZIRCONIUM OXIDES