About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
16th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
Presentation Title |
N-3: Dielectric and Electrical Properties of Complex Perovskite Nano-Materials |
Author(s) |
Kamdeo Mandal, Anup Kumar, N.B. Singh |
On-Site Speaker (Planned) |
Kamdeo Mandal |
Abstract Scope |
ACu3Ti4O12 (ACTO, where A = Ca, Y2/3, Bi2/3) type of ceramics were successfully synthesized by semi-wet route. The Single phase formation of these ceramic was confirmed by powder X-ray diffraction studies. These ceramics were further characterized by dielectric and impedance studies. The dielectric constant (εr) was found very high for these ceramics at room temperature. The tangent loss (tan δ) value of these ceramics were found slightly high. Scientists have been working to reduce dielectric loss by doping or partial substitution of different elements at Cu and Ti sites independently or simultaneously by applying different synthesis route. The dielectric constant and tangent loss both decrease with increasing frequency in the lower frequency regions, while these are almost constant in the higher frequency regions. Impedance studies were used to see the contributions of grain and grain boundaries effect. |