Low temperature dielectric properties of Ca0.7Nd0.3Ti0.7Al0.3O3 microwave ceramics
Sudheendran, K., Raju, K.C. James, and Jacob, Mohan V. (2011) Low temperature dielectric properties of Ca0.7Nd0.3Ti0.7Al0.3O3 microwave ceramics. Journal of the Australian Ceramic Society, 47 (2). pp. 65-68.
|PDF (Published Version) - Repository staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader|
View at Publisher Website: http://www.austceram.com/ACS-Journal-201...
CaTiO3-NdAlO3 based ceramic composites with the nominal composition Ca0.7Nd0.3Ti0.7Al0.3O3 was synthesized by the conventional ceramic method and the dielectric measurements were carried out as a function of frequency (1KHz-4MHz) in the temperature range of 150-303 K. The complex impedance spectroscopy (CIS) analysis has been carried out to investigate the influence of its microstructure on electrical properties as a function of temperature and frequency. Impedance studies indicated the presence of a temperature dependent relaxation process in the material with a spread of relaxation times. Microwave measurement at low temperatures reveals that these systems has a slight increase in dielectric constant as temperature decreases and a loss tangent peak around 50Kelvin.
|Item Type:||Article (Refereed Research - C1)|
|Keywords:||microwave dielectrics, dc conductivity, impedance spectroscopy|
|FoR Codes:||09 ENGINEERING > 0912 Materials Engineering > 091208 Organic Semiconductors @ 100%|
|SEO Codes:||97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 100%|
|Deposited On:||26 Mar 2012 13:44|
|Last Modified:||26 May 2013 01:49|
Last 12 Months: 0
|Citation Counts with External Providers:||Web of Science: 0|
Repository Staff Only: item control page