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Investigation of hydrogen effects on the properties of Pb(Zr,Ti)O3 in tetragonal phase using water electrolysis technique

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5 Author(s)
Shafiei, A. ; Department of Materials Engineering, The University of British Columbia, 309-6350 Stores Road, Vancouver, BC V6T 1Z4, Canada ; Nickchi, T. ; Oprea, C. ; Alfantazi, A.
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In this work, the interaction of hydrogen with Pb(Zr,Ti)O3 (PZT) in the tetragonal phase is investigated using water electrolysis technique. Microstructural observations show the development of a hydrogen affected (corroded) layer adjacent to the electrode functioning as the cathode during the water electrolysis. A composite model is proposed for the microstructure of PZT affected by hydrogen generated during water electrolysis and changes of the electrical properties of PZT are linked to the model. Maxwell-Wagner polarization mechanism is proposed to be responsible for the changes of the hydrogen-affected PZT capacitance.

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Applied Physics Letters  (Volume:99 ,  Issue: 21 )