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Thermal and frequency stability of dielectric ceramic Ba6-3xNd8+2xTi18O54 (x=0.15, 0.25)


Citation

Lee, Chian Heng and Hassan, Jumiah and Hashim, Mansor and Aziz, Raba'ah Syahidah and Mohd Saiden, Norlaily (2014) Thermal and frequency stability of dielectric ceramic Ba6-3xNd8+2xTi18O54 (x=0.15, 0.25). Physical Science International Journal, 4 (10). pp. 1318-1325. ISSN 2348-0130

Abstract

A new dielectric material, barium neodymium titanate (BNT) ceramic can provide good thermal and frequency stability on the dielectric properties. The synthesis of BNT ceramics with x=0.15 and 0.25 was carried out using wet solid state method. The ceramics were characterized by X-ray diffraction to identify the phase. The shifting of XRD peaks revealed higher content of neodymium ions inside the compound. Surface morphology of the ceramics was determined using FESEM. Different compositions influenced the grain growth of the ceramics. BNT ceramics with higher neodymium content showed higher porosity, and higher resistance to shrinkage. The dielectric properties at low frequency from 40 Hz to 1 MHz were measured using Impedance Analyzer. The polarization effect inside the material was discussed and compared. BNT ceramics with x=0.15 has higher dielectric constant. These BNT ceramics showed frequency and thermal stability with respect to the dielectric constant.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.9734/PSIJ/2014/12908
Publisher: Sciencedomain International
Keywords: Dielectric properties; Microstructure; Polarization; Thermal stability
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 10 Feb 2016 08:34
Last Modified: 26 Apr 2017 09:27
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.9734/PSIJ/2014/12908
URI: http://psasir.upm.edu.my/id/eprint/35836
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