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Viktor Porokhonskyy

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Related publications (3)

Please note that this is not a complete list of this person’s publications. It includes only semantically relevant works. For a full list, please refer to Infoscience.

What Can Be Expected From Lead-Free Piezoelectric Materials?

Dragan Damjanovic, Li Jin, Naama Klein, Viktor Porokhonskyy

The reasons for the lower piezoelectric properties in the most studied lead-free piezoelectrics, modified (K,Na)NbO3 and (Bi0.5Na0.5)TiO3, are discussed. Contributions from domain wall motion and properties at the morphotropic phase boundary are considered ...

2010

Separation of piezoelectric grain resonance and domain wall dispersion in Pb(Zr,Ti)O-3 ceramics

Dragan Damjanovic, Li Jin, Viktor Porokhonskyy

We report on the experimental investigation of a high-frequency (1 MHz-1.8 GHz) dielectric dispersion in unpoled and poled Pb(Zr,Ti)O-3 ceramics. Two overlapping loss peaks could be revealed in the dielectric spectrum. The linear dependence between the low ...

American Institute of Physics2009

Lattice dynamics and dielectric response of undoped, soft and hard PbZr0.42Ti0.58O3

Dragan Damjanovic, Li Jin, Viktor Porokhonskyy

In this study, ceramic samples of lead zirconate titanate Pb(Zr0.42Ti0.58)O3 (PZT 42/58) doped with Fe (hard) and Nb (soft) were studied by Raman, infrared (IR) and THz spectroscopy in the temperature range from 900 to 20 K. From the evaluation of the IR a ...

Taylor & Francis2010