Enhanced performances of sandwich structure Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics for pulsed power application

• Sandwich-like structure Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics were designed and prepared.
• The new structure exhibits the high ferroelectric properties, typical of dense PZT95/5 ferroelectric ceramics.
• The new structure also exhibits high voltage breakdown resistance of porous PZT95/5 ferroelectric ceramics under shock compression.
• The enhanced performances make the new structure promising candidate for pulsed power supply application.

Sandwich-like structure Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 ferroelectric ceramics were prepared by die-pressing technique and the microstructure, dielectric and ferroelectric properties were investigated in the present study. It is found that the controlled pores can be well sustained in the porous layer, and for the sandwich-like structure, high breakdown strength, resistivity and low dielectric loss are simultaneously achieved. The resulting enhanced performances make the sandwich-like structure ferroelectric ceramics promising candidate for pulsed power supply application.

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