Skip to main content
padlock icon - secure page this page is secure

Enhanced Piezoelectric and Ferroelectric Properties of Nb2O5 Modified Lead Zirconate Titanate-Based Composites

Buy Article:

$52.00 + tax (Refund Policy)

The addition of ZnO nanowhiskers (ZnOw) in lead zirconate titanate (PZT) matrices results in reinforced composite materials but deteriorates their electrical properties. In this study, novel piezoelectric PZT/ZnOw composites modified with Nb2O5 were successfully fabricated using solid-state sintering method. The experimental results showed that the addition of 0.5 wt% Nb2O5 resulted in highly dense and homogenous PZT composites after sintering at 1150°C, with good piezoelectric and ferroelectric properties similar to pure PZT, specifically piezoelectric constant d33=665 pC/N, electromechanical coupling factor kp=0.7, relative dielectric constant =5048, and remnant polarization Pr=30.2 C/cm2. The “soft effect” of Nb5+ ions, reflected in the improvement of the aforementioned properties, is attributed to the accommodation of Nb5+ ions at the B sites of the lattice of PZT. Compared with the PZT/ZnOw reinforced composites, the mechanical properties were slightly improved by adding 0.5 wt% Nb2O5, where flexural strength f of 128 MPa and fracture toughness KIC of 1.46 MPa·m1/2 were measured.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Document Type: Research Article

Affiliations: 1: School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China 2: School of Information Engineering, Central University for Nationalities, Beijing 100081, China 3: Department of Materials Science and Engineering, University of Ioannina, GR-451 10 Ioannina, Greece

Publication date: March 1, 2011

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more