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Impedance analysis of 0 . 65 Pb ( Mg 1 / 3 Nb 2 / 3 ) O 3 – 0 . 35 PbTiO 3 ceramic
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sen, Shrabanee Mishra, Santosh Kumar Palit, Sabarni Das, Sabuj Kanti Tarafdar, Abhrajyoti |
| Copyright Year | 2007 |
| Abstract | 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 ceramic was prepared by citrate gel method. The electrical property of this compound was investigated using mpedance spectroscopy. The appearance of grain and grain boundary is evident at higher temperature (≥425 ◦C). The depression of semicircle in he impedance plot and the value of full width half maximum (FWHM) of the peaks in the modulus plot show that the compound exhibits non-Debye elaxation process. The impedance analysis further provided the value of relaxation frequency, which is a characteristic intrinsic property of the aterial. The temperature variation of the bulk conductivity indicated an Arrhenius type of thermally activated process, showing a linear variation pto 425 ◦C and above which it is dominated by grain boundary conduction, which was evident from the slope change at 425 ◦C. The temperature oefficients of the resistance (α) were derived being equal to −1.4 × 10−2 C−2 at 400 ◦C. The low value of exponent (s) indicates the presence of symmetric charge defects. 2006 Elsevier B.V. All rights reserved. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://library.nmlindia.org/FullText/Pub_NDEcenter/41-GVS%20Murthy%20(Press).pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
