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IJPAP Vol.44 [2006] >
IJPAP Vol.44(06) [June 2006] >
| Title: | Physical properties of PbO-Al2O3-B2O3 glasses doped with Cr2O3 |
| Authors: | Reddy, M Rami
Reddy, M Srinivasa
Veeraiah, N |
| Keywords: | PbO-Al2O3-B2O3
Chromium ions
Optical absorption
Thermoluminescence
Dielectric properties |
| Issue Date: | Jun-2006 |
| Publisher: | CSIR |
| IPC Code: | G01R 27/26, F21K 2/04 |
| Abstract: | PbO-Al2O3-B2O3
glasses containing different concentrations of Cr2O3
ranging from 0 to 0.4 mol % were prepared. The dielectric properties (constant e, loss tand, ac conductivity sac over a range of frequency and temperature and breakdown strength)
of these glasses have been studied. The results of these studies were analyzed
with the aid of data on optical absorption, IR spectra and thermoluminescence
studies on these glasses. The analysis suggests that the chromium ions exist in
Cr3+ state which act as modifiers. When Cr2O3
is present in higher concentrations in the glass matrix, these ions seem to
exist in Cr6+ state and take part in network forming positions with structural units. |
| Page(s): | 446-454 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(06) [June 2006]
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