Loading...
Please wait, while we are loading the content...
Similar Documents
Role of TeO 2 on Conduction Mechanism in AgI-Ag 2 OB 2 O 3 Glasses
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kumar, E. Ramesh Kumari, K. Rajani Rao, Bojja Appa Bhikshamaiah, G. |
| Copyright Year | 2014 |
| Abstract | Glasses containing TeO2 as a network former have got many applications particularly when they are mixed with super conducting halides and oxides. In the present study we have synthesized AgI-Ag2O-B2O3-TeO2 (SBT) glass system with different concentrations of TeO2 by melt quenching technique and studied their electrical properties. All the prepared glasses were characterized by X-ray diffraction. X-ray diffraction confirmed the amorphous nature of the prepared samples. The DC and AC conductivity was measured for all SBT samples in the temperature region 300 to 503K and activation energies were evaluated. The AC conductivity measurements were made for all SBT glasses as a function of frequency 100 Hz to 3 MHz. The true bulk conductivity of pure sample at room temperature (σe =2.24 x 10 -6 S/cm) was found to be enhanced with increase in mol % of TeO2 and found to be maximum 1.02x10 -2 S/cm at 503 K for 0.4 mol% of TeO2. Both DC & AC conductivities were found to increase and activation energies decreased with increasing the concentration of TeO2. The variation of conductivity with the TeO2 content in the SBT system is explained using the diffusion path model, whereas the variation of conductivity with the frequency is analyzed by correlating the microscopic nature of the ionic conduction process in the SBT system. © 2014 Universal Research Publications. All rights reserved |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://urpjournals.com/tocjnls/19_14v4i2_1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
