Dielectric and piezoelectric properties of PZT ceramics doped with strontium and lanthanum

Date

2011-05-01

Author

Kalem, Volkan
Çam, İbrahim
Timucin, Muharrem

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

182
views

0
downloads

PZT based piezoelectric ceramics obtained by doping with various levels of Sr2+ and La3+, designated as PSLZT, were prepared by conventional processing techniques. The effects of Sr2+ and La3+ additions, and that of the Zr/Ti ratio on microstructure, on phase constitution, and on the dielectric and piezoelectric properties were investigated. XRD data revealed that all PSLZT compositions had perovskite structure in which increasing Sr and/or decreasing Zr/Ti ratio increased the tetragonality. In PSLZT ceramics the morphotropic phase boundary (MPB) appeared as regions extending from Zr/Ti ratio of 52/48 to 58/42. Among all compositions studied, the PSLZT ceramic having 5 at% Sr2+ and 1 at% La3+ with a Zr/Ti ratio of 54/46 exhibited a peak piezoelectric strain coefficient of d(33) = 640 pC/N with attending dielectric and electromechanical parameters K-33(T) = 1800, k(p) = 0.56, Q(m) = 70, and tan delta = 1.55%. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Subject Keywords

Process Chemistry and Technology, Materials Chemistry, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Ceramics and Composites

URI

https://hdl.handle.net/11511/46756

Journal

CERAMICS INTERNATIONAL

DOI

https://doi.org/10.1016/j.ceramint.2010.12.003

Collections

Test and Measurement Center In advanced Technologies (MERKEZ LABORATUVARI), Article

Suggestions

OpenMETU
Core

Thermoluminescence properties of Al doped ZnO nanoparticles IŞIK, MEHMET; Hasanlı, Nızamı (Elsevier BV, 2018-08-15) ZnO nanoparticles doped with aluminum (AZO nanoparticles) were investigated using low temperature thermoluminescence (TL) and structural characterization experiments. TL experiments were performed on AZO nanoparticles in the temperature range of 10-300 K. TL curve presented one intensive peak around 123 K and two overlapped peaks to intensive peak around 85 and 150 K for heating rate of 0.1 K/s. Curve fitting and initial rise methods were used to find the activation energies of associated trapping centers. ...
Hydrothermal synthesis of Yb-doped BiFeO3 crystallites and their structural, magnetic and electrical properties Özdilek, Çağrı (Elsevier BV, 2020-01-01) © 2020 Elsevier Ltd and Techna Group S.r.l.The influence of Yb doping on the structural, magnetic and electrical properties of bismuth ferrite (BiFeO3) was investigated. Well-crystallized BiFeO3 (BFO) and Yb-doped BiFeO3 powders (Bi1-xYbxFeO3: x = 0, 0.03, 0.05, 0.1) were successfully synthesized via a typical hydrothermal method. X-ray diffraction (XRD) revealed that powders have a distorted rhombohedral structure with a space group of R3c. Field emission scanning electron microscope (FESEM) studies indica...
Facile control of hydroxyapatite particle morphology by utilization of calcium carbonate templates at room temperature Oral, Çağatay M.; Çalışkan, Arda; Kapusuz, Derya; Ercan, Batur (Elsevier BV, 2020-09-01) Hydroxyapatite (HAp, Ca-10(PO4)(6)(OH)(2)) particles are widely used in orthopedic applications due to their chemical resemblance to the inorganic component of bone tissue. Since physical and chemical properties of HAp particles influence bone regeneration, various synthesis techniques were developed to precisely control the particle properties. However, most of these techniques required high reaction temperatures, which limited the spectrum of obtained HAp particle morphologies. In this study, ellipsoidal,...
Catalytic effect of alkaline earth oxides on carbothermic formation of hexagonal boron nitride ÇAMURLU, HASAN ERDEM; Topkaya, Yavuz Ali; SEVİNÇ, NACİ (Elsevier BV, 2009-08-01) Effect of MgO, CaO and BaO on carbothermic formation of hexagonal boron nitride (h-BN) was investigated. B(2)O(3-)C mixtures containing alkaline earth oxide additives were reacted at 1500 degrees C for 30-120 min in nitrogen atmosphere. Formed phases in the reaction products were determined by powder-XRD analyses, and amounts of the constituents were determined by chemical analyses. Particle size and morphology of the formed h-BN powders were examined by FESEM and particle size distributions were determined...
Fabrication and characterization of porous tricalcium phosphate ceramics Koc, N; Timucin, M; Korkusuz, Feza (Elsevier BV, 2004-01-01) Preforms of beta tricalcium phosphate (beta-TCP) ceramics were produced by using a modified slip casting technique. The slip was prepared by suspending custom-made TCP powder and PMMA beads in an aqueous medium stabilized with an acrylic deflocculant. Porous TCP ceramics were obtained by sintering the polymer-free preforms for 2 h at 1000 degreesC. The XRD pattern for the TCP ceramic indicated that the product was essentially pure beta-TCP. SEM examination of pore size and pore size distribution revealed th...

Citation Formats

V. Kalem, İ. Çam, and M. Timucin, “Dielectric and piezoelectric properties of PZT ceramics doped with strontium and lanthanum,” CERAMICS INTERNATIONAL, pp. 1265–1275, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46756.