Evidence of extended defects in pure zirconia irradiated by swift heavy ions

Journal Article · Sun Oct 01 00:00:00 EDT 2006 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.74.132107· OSTI ID:20853732

Baldinozzi, Gianguido ^[1]; Simeone, David; Gosset, Dominique ^[2]; Monnet, Isabelle ^[3]; Le Caeer, Sophie ^[4]; Mazerolles, Leo ^[5]

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1. SPMS, UMR CNRS 8580, Ecole Centrale Paris, 92295 Chatenay-Malabry (France)
2. DEN/DMN/SRMA/LA2M, CEA Saclay, 91191 Gif-sur-Yvette (France)
3. CIRIL, CEA-CNRS-ENSICAEN, 14070 Caen Cedex 5 (France)
4. DSM/DRECAM/SCM/URA 331 CNRS, CEA Saclay, 91191 Gif sur Yvette (France)
5. CECM, UPR CNRS 2801, 94407 Vitry sur Seine (France)

X-ray diffraction, transmission electron microscopy, and optical spectroscopy were used to investigate the microstructure of polycrystalline samples of pure monoclinic zirconia irradiated by high energy ions. These techniques point out the existence of extended defects and they allow to monitor the tetragonal to monoclinic phase transition as a function of the temperature during isochronal annealings. The Landau theory approach explains the phase transition mechanism via the presence of an important strain field induced by dislocations. Though high and low energy ions can effectively stabilize the same tetragonal phase in the irradiated layer, only point defects are produced at low energy whereas extended defects are also observed at high energy, showing the strong influence of the energy deposition modes on the observed microstructures.

• OSTI ID: 20853732
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 74, Issue 13; Other Information: DOI: 10.1103/PhysRevB.74.132107; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTROSCOPY
ANNEALING
DISLOCATIONS
HEAVY IONS
ION BEAMS
IRRADIATION
LAYERS
MICROSTRUCTURE
MONOCLINIC LATTICES
PHASE TRANSFORMATIONS
PHYSICAL RADIATION EFFECTS
POINT DEFECTS
POLYCRYSTALS
SOLIDS
STRAINS
TETRAGONAL LATTICES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
ZIRCONIUM OXIDES