Enhanced Piezoelectric and Ferroelectric Properties of Nb2O5 Modified Lead Zirconate Titanate-Based Composites
| dc.contributor.author | Wang, D. W. | en |
| dc.contributor.author | Cao, M. S. | en |
| dc.contributor.author | Yuan, J. | en |
| dc.contributor.author | Zhao, Q. L. | en |
| dc.contributor.author | Li, H. B. | en |
| dc.contributor.author | Zhang, D. Q. | en |
| dc.contributor.author | Agathopoulos, S. | en |
| dc.date.accessioned | 2015-11-24T17:34:02Z | |
| dc.date.available | 2015-11-24T17:34:02Z | |
| dc.identifier.issn | 0002-7820 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/13921 | |
| dc.rights | Default Licence | - |
| dc.subject | electrical-properties | en |
| dc.subject | pzt ceramics | en |
| dc.subject | zno | en |
| dc.subject | nanocomposites | en |
| dc.subject | behavior | en |
| dc.title | Enhanced Piezoelectric and Ferroelectric Properties of Nb2O5 Modified Lead Zirconate Titanate-Based Composites | en |
| heal.abstract | 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 degrees C, with good piezoelectric and ferroelectric properties similar to pure PZT, specifically piezoelectric constant d(33)=665 pC/N, electromechanical coupling factor k(p)=0.7, relative dielectric constant epsilon=5048, and remnant polarization P-r=30.2 mu 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 Sigma(f) of 128 MPa and fracture toughness K-IC of 1.46 MPa center dot m1/2 were measured. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | DOI 10.1111/j.1551-2916.2010.04309.x | - |
| heal.identifier.secondary | <Go to ISI>://000288261500002 | - |
| heal.identifier.secondary | http://onlinelibrary.wiley.com/store/10.1111/j.1551-2916.2010.04309.x/asset/j.1551-2916.2010.04309.x.pdf?v=1&t=h3cr656l&s=d854c793bb5fd3a61c5c9f4aa1f8895c3d8877e9 | - |
| heal.journalName | Journal of the American Ceramic Society | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2011 | - |
| heal.publisher | The American Ceramic Society | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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