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Precipitate splitting in Pb0.91La0.09Zr0.65Ti0.35O3 films

Published online by Cambridge University Press:  31 January 2011

Bahadir Tunaboylu ,
Ken Ring ,
Sadik C. Esener ,
Cengiz Ozkan  and
Ali Ata
Bahadir Tunaboylu
Affiliation:
Department of Electrical and Computer Engineering and Materials Science Program, University of California at San Diego, La Jolla, California 92093
Ken Ring
Affiliation:
Department of Electrical and Computer Engineering and Materials Science Program, University of California at San Diego, La Jolla, California 92093
Sadik C. Esener
Affiliation:
Department of Electrical and Computer Engineering and Materials Science Program, University of California at San Diego, La Jolla, California 92093
Cengiz Ozkan
Affiliation:
University of California Riverside, Department of Mechanical Engineering, Riverside, California 92521
Ali Ata
Affiliation:
Department of Materials Science, Gebze Institute of Technology, Gebze 41400, Kocaeli, Turkey
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Abstract

The transformation to perovskite phase of Pb0.91La0.09Zr0.65Ti0.35O3 (9/65/35) films on r-sapphire and resulting annealed microstructures were examined by transmission electron microscopy. A random equiaxed polycrystalline grain morphology (approximately 600 nm) was observed after rapid-thermal annealing or furnace annealing when the as-deposited (radio-frequency-magnetron sputtering) films were predominantly pyrochlore. However, an interesting paired-plate structure was revealed after furnace annealing when the as-deposited films were fully perovskite. The average size of such a split precipitate was 35 nm in width and 150 nm in length.

Type
Rapid Communications
Information
Journal of Materials Research , Volume 16 , Issue 10 , October 2001 , pp. 2763 - 2766
Copyright
Copyright © Materials Research Society 2001

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