For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Approximation of the Rheological Properties of Composite Materials
p.32
Preparation and Properties of a Novel High-Strength Foam
p.37
Improvement Filler-Rubber Interaction and Mechanical Properties of Silica/NR Vulcanizates by Using Masterbatch Processing
p.44
The Synthesis and Characterizations of Aluminums Doped Barium Ferrite (BaAlFe11O19)
p.50
Influence of Sintering Temperature on Structure and Electrical Properties of Modified-BNKT Lead-Free Piezoelectric Ceramics
p.55
Effects of Sintering Temperatures on Structural, Electrical and Mechanical Properties of BNKT Piezoelectric Ceramics
p.60
Study on the UV Curing Reactivity of Micro-Injection UV-Curing Molding
p.65
Toughened Poly(Trimethylene Terephthalate) by Reactive Blending with PTW
p.70
Peroxide Induced Reaction as a Cross-Linking Method in PHBV Biomaterial Gate Dielectrics
p.75

Influence of Sintering Temperature on Structure and Electrical Properties of Modified-BNKT Lead-Free Piezoelectric Ceramics

Article Preview

Abstract:

In this research, the effects of sintering temperature on phase structure, densification, microstructure, and electrical properties of modified-BNKT ceramics were investigated. Conventional sintering of lead-free 0.97Bi0.5(Na0.80K0.20)0.5TiO3-0.03(Ba0.70Sr0.30)O3 or 0.97BNKT-0.03BSrT ceramic was investigated to clarify the optimal sintering temperature for densification and electrical properties. All ceramics were prepared by a conventional mixed oxide and sintered at various temperatures from 1100 to 1150°C. XRD pattern indicated all ceramics exhibited a single perovskite without any secondary phases. The maximum density of 5.80 g/cm3 with relative density of 99.32% were observed for the ceramic sintered at 1125°C. Grain size tended to increase with increasing the sintering temperature. The good dielectric (Td = 121 °C, Tm = 320 °C and e¢max = 4982) and ferroelectric properties (Pr = 16.66 µC/cm2, Ec = 17.85 kV/cm and Rsq = 0.74) were obtained for the ceramic sintered at optimum sintering temperature of 1125°C.

You might also be interested in these eBooks
Advanced Materials and Engineering Materials VII View Preview

Info:

Periodical:

Key Engineering Materials (Volume 777)

Pages:

55-59

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.777.55

Citation:

Cite this paper

Online since:

August 2018

Authors:

Pharatree Jaita*, Supalak Manotham, Narumon Lertcumfu

Keywords:

BNKT Lead-Free Ceramic, Dielectric, Ferroelectric, Sintering Temperature

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2018 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] R.A. Malik, A. Hussain, A. Zaman, A. Maqbool, J.U. Rahman, T.K. Song, W.J. Kim, M.H. Kim, Structure-property relationship in lead-free A-and B-site co-doped Bi0.5(Na0.84K0.16)0.5TiO3-SrTiO3 incipient piezoceramics, RSC Adv. 5 (2015) 96953-96964.

DOI: 10.1039/c5ra19107f

Google Scholar

[2] A. Ullah, C.W. Ahn, R.A. Malik, J.S. Lee, I.W. Kim, Electromechanical and microstructural study of (1-x)Bi0.5(Na0.40K0.10)TiO3-x(Ba0.70Sr0.30)TiO3 lead-free piezoelectric ceramics, J Electroceram. 33 (2014) 187-194.

DOI: 10.1007/s10832-014-9945-x

Google Scholar

[3] J. Rödel, W. Jo, K.T.P. Seifert, E.M. Anton, T. Granzow, D. Damjanovic, Perspective on the development of lead-free piezoceramics, J. Am. Ceram. Soc. 92 (2009) 1153-1177.

DOI: 10.1111/j.1551-2916.2009.03061.x

Google Scholar

[4] A. Sasaki, T. Chiba, Y. Mamiya, E. Otsuki, Dielectric and pizoelectric properties of (Bi0.5Na0.5)TiO3-(Bi0.5K0.5)TiO3 systems, Jpn. J. Appl. Phys. 38 (1999) 5564-5567.

Google Scholar

[5] K. Yoshii, Y. Hiruma, H. Nagata, T. Takenaka, Electrical properties and depolarization temperature of (Bi1/2Na1/2)TiO3-(Bi1/2K1/2)TiO3 lead-free piezoelectric ceramics, Jpn. J. Appl. Phys. 45[5B] (2006) 4493-4496.

DOI: 10.1016/j.ceramint.2007.10.023

Google Scholar

[6] X. Cheng, M. Shen, Enhanced spontaneous polarization in Sr and Ca co-doped BaTiO3 ceramics, Solid State Commun. 141 (2007) 587-590.

DOI: 10.1016/j.ssc.2007.01.009

Google Scholar

[7] Y.R. Zhang, J.F. Li, B.P. Zhang, Enhancing electrical properties in NBT-KBT lead-free piezoelectric ceramics by optimizing sintering temperature, J. Am. Ceram. Soc. 91 (2008) 2716-2719.

DOI: 10.1111/j.1551-2916.2008.02469.x

Google Scholar

[8] A.J. Moulson, J.M. Herbert, Electroceramics materials, properties, applications, Seconded; J. Wiley and Sons, New York, (2003).

Google Scholar

[9] C. Peng, J.F. Li, W. Gong, Preparation and properties of (Bi1/2Na1/2)TiO3-Ba(Ti,Zr)O3 lead-free piezoelectric ceramics, Mater. Lett. 59 (2005) 1576-1580.

DOI: 10.1016/j.matlet.2005.01.026

Google Scholar

[10] W.D. Callister, Materials Science and Engineering: An Introduction, John Wiley & Sons Inc., New York, (2003).

Google Scholar

[11] A. Hussain, C.W. Ahn, J.S. Lee, A. Ullah, I.W. Kim, Large electric field induced strain in Zr-modified lead-free Bi0.5(Na0.78K0.22)0.5TiO3 piezoelectric ceramics, Sens. Actuators A: Phys. 158 (2010) 84-89.

DOI: 10.1016/j.sna.2009.12.027

Google Scholar

[12] G. Fan, W. Lu, X. Wang, F. Liang, J. Xiao, Phase transition behavior and electromechanical properties of (Na1/2Bi1/2)TiO3-KNbO3 lead-free piezoelectric ceramics, J. Phys. D: Appl. Phys. 41 (2008) 035403.

DOI: 10.1088/0022-3727/41/3/035403

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.