Abstract
Lead-free ceramics system of 0.96[Bi0.5Na0.5Ti(1-x)NbxO3]-0.04SrZrO3 BNT-SZ-Nb100x (with Nb100x = 0-4) were prepared by a solid-state reaction method. X-ray diffraction analysis revealed the formation of pure perovskite phase with x ≤ 0.03. The temperature dependence of dielectric curves showed that maximum dielectric constant temperature (Tm) shifted towards lower temperatures and the curves become more diffuse with increasing Nb doping. Ferroelectric curves indicated a disruption of ferroelectric order upon Nb addition. From Nb0 to Nb2 ceramics, maximum values for the field-induced strain (Smax) was enhanced from 0.09 to 0.22%. The corresponding normalized strain (Smax/Emax) was increased from 125 to 315 pm/V.
| Original language | English |
|---|---|
| Pages (from-to) | 23-31 |
| Number of pages | 9 |
| Journal | Ferroelectrics |
| Volume | 488 |
| Issue number | 1 |
| DOIs | |
| State | Published - 30 Oct 2015 |
| Externally published | Yes |
Keywords
- electric field-induced strain
- ferroelectric properties
- Lead-free
- relaxor behavior
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