Abstract
Polycrystalline samples of Pb(Cd 1/2W 1/2)O 3 were synthesized by a high-temperature solid-state reaction technique. Preliminary crystal structure and microstructure of the compound at room temperature were studied using X-ray diffraction (XRD) technique and scanning electron microscopy (SEM), respectively. The dielectric permittivity ( ε) and loss tangent (tan δ) of the compound were obtained both as a function of frequency (10 3–10 4 Hz) at room temperature and temperature (30–320°C) at 10 kHz. Both the ac and dc conductivity has been studied over a wide range of temperature. The activation energy ( E a) of the compound was calculated from the plot of ac conductivity versus inverse of absolute temperature. The temperature variation of resistivity shows that the compound has positive temperature coefficient of resistance (PTCR). The current–voltage ( I–V)-characteristics of the compound studied at diffierent temperatures reveals that the compound also has excellent varistor behavior.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.