For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Non-Cylindrical Fuselage Structural Optimization of BWB Civil Aircraft
p.1736
Research on the DSP- Based Grid-Connect Inverter for 3kW Fuel Cells
p.1740
The Effects of MWTs Characteristics on User Satisfaction in Mobile Government Systems
p.1745
Design and Finite Element Analysis on Crown Gear Coupling of High Torque Considering Radial Restriction
p.1750
Optimum Sintering Temperature for Fabrication of 0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3 Lead-Free Ceramics by Combustion Technique
p.1754
Using Genetic Algorithm to Help the Seller Strategies in Online Auction
p.1760
A Novel ECC-Based RFID Authentication Protocol
p.1764
Cellular Differential Evolution for Optimization
p.1770
Using Chemical Coprecipitation Method to Prepare Magnetite Magnetic Fluids and Explore its Applications in Hyperthermia
p.1776

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

Article Preview

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.

You might also be interested in these eBooks
Advanced Materials and Computer Science View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 474-476)

Pages:

1754-1759

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.474-476.1754

Citation:

Cite this paper

Online since:

April 2011

Authors:

Atthakorn Thongtha, Theerachai Bongkarn

Keywords:

BNKT, Combustion Technique, Microstructure, Morphotropic Phase Boundary, Sintering

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] M. Otonicar, S.D. Skapin, M. Spreitzer and D. Suvorov: J Eur. Ceram. Soc., Vol. 30 (2010), p.971.

Google Scholar

[2] A. Sasaki, T. Chiba, Y. Mamya and E. Otsuki: Jpn. J. Appl. Phys., Vol. 38 (1999), p.5564.

Google Scholar

[3] H. Xie, L. Jin, D. Shen, X. Wang and G. Shen: J. Cryst. Growth, Vol. 311 (2009), p.3626.

Google Scholar

[4] O. Elkechai, M. Manier and J. P. Mercurio: Phys. Status Solidi (A), Vol. 157 (1996), p.499.

Google Scholar

[5] K. Yoshii, Y. Hiruma, H. Nagata and T. Takenaka: Jpn. J. Appl. Phys., Vol. 45 (2006), p.4493.

Google Scholar

[6] A. Thongtha and T. Bongkarn: Ferroelectrics, Vol. 383 (2009), p.33.

Google Scholar

[7] A. Thongtha and T. Bongkarn: Key Eng. Mater., Vol. 421-422 (2010), p.223.

Google Scholar

[8] P. Julphunthong and T. Bongkarn: Curr. Appl. Phys., (In Press).

Google Scholar

[9] R.M. German: Sintering Theory and Practice (New York, Wiley 1996).

Google Scholar

[10] X.J. Yi, H.C. Chen, W.W. Cao, M.L. Zhao, D.M. Yang, G.P. Ma, C.H. Yang and J.R. Han: J. Cryst. Growth, Vol. 281 (2005), p.364.

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.