Paper Title:
Optimum Sintering Temperature for Fabrication of 0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3 Lead-Free Ceramics by Combustion Technique
  Abstract

The effect of sintering temperatures (1050-1200 °C) on the phase formation, microstructure and dielectric properties of a binary system lead-free ceramic bismuth sodium titanate–bismuth potassium titanate were investigated. 0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3; BNKT ceramics were successfully fabricated using the combustion technique. XRD results showed the rhombohedral-tetragonal morphotropic phase boundary (MPB). The SEM results showed the average grain size (0.51-2.59 µm) of the samples increased with the increase of sintering temperatures. The sample sintered at the optimum temperature of 1150 °C exhibited the maximum density, shrinkage, dielectric constant at Curie temperature and remanent polarization (Pr) which were around 5.65 g/cm3, 17.75%, 5014 and 1.6 mC/cm2, respectively. The dielectric constant was related to the XRD results and density of the sintered ceramic.

  Info
Periodical
Key Engineering Materials (Volumes 474-476)
Edited by
Garry Zhu
Pages
1754-1759
DOI
10.4028/www.scientific.net/KEM.474-476.1754
Citation
A. Thongtha, T. Bongkarn, "Optimum Sintering Temperature for Fabrication of 0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3 Lead-Free Ceramics by Combustion Technique", Key Engineering Materials, Vols. 474-476, pp. 1754-1759, 2011
Online since
April 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Athipong Ngamjarurojana, Supon Ananta, Rattikorn Yimnirun
Abstract:The structure and electrical properties of Al2O3-doped 0.2Pb(Zn1/3Nb2/3)O3-0.8Pb(Zr1/2Ti1/2)O3 ceramic, which is the morphotropic phase...
89
Authors: Nur Shafiza Afzan Sharif, J.M. Juliewatty, W.A.W. Yusoff
Abstract:Pb (Zr0.52Ti0.48)O3, (PZT) powder has been synthesized using high energy ball milling technique. The...
223
Authors: Mohd Fariz Ab Rahman, Asyraf bin Arshad, Zainal Arifin Ahmad, Julie Juliewatty Mohamed
Abstract:The properties of Pb(Zr0.52Ti0.48)O3 (PZT) ceramics have been studied. PZT ceramic powders were...
167
Authors: Ladapak Chumprasert, Narit Funsueb, Apichart Limpichaipanit, Athipong Ngamjarurojana
Chapter 6: Materials Science and Applications
Abstract:Structure–property relationship has been performed in the lanthanum-modified lead–zirconate–titanate (PLZT) with a lanthanum content 8 and...
627