What are the dominant charge carriers in lead silicate glasses?

1986 ◽  
Vol 5 (4) ◽  
pp. 443-444 ◽  
Author(s):  
Akira Doi
2018 ◽  
Vol 35 (4) ◽  
pp. 681-686 ◽  
Author(s):  
J. Karczewski ◽  
T. Miruszewski ◽  
B. Bochentyn ◽  
B. Kusz

Abstract Impedance spectroscopy measurements in various gas atmospheres were carried out in order to explain the doubts about the type of carriers and the mechanism of electrical conductivity in Bi-Si-O and Pb-Si-O glasses. In bismuth silicate glass, a typical ionic conductivity with oxygen ions as charge carriers was observed. The level of electrical conductivity of the glass at 400 °C was 5 × 10-8 S·cm-1, with the activation energy of 1.3 eV and was independent of measuring atmosphere. In the case of lead silicate glasses, the conductivity changed with measuring atmosphere. Two types of charge carriers: oxygen ions and proton ions were postulated. Proton conductivity measured in wet argon at temperature 400 °C was estimated at the level of 4 × 10-8 S·cm-1 while the oxygen ions conductivity in such conditions was 78 × 10-8 S·cm-1. We suggest that both types of charge carriers are transported along the same conduction paths using oxygen defects in the glass structure.


Author(s):  
A. Khanna ◽  
A. Kaur ◽  
M. Fábián ◽  
Hirdesh ◽  
A. Kaur

1984 ◽  
Vol 64 (1-2) ◽  
pp. 287-290 ◽  
Author(s):  
Takamitsu Fujiu ◽  
Makoto Ogino

1973 ◽  
Vol 13 (8) ◽  
pp. 1057-1060 ◽  
Author(s):  
Clayton Wilson Bates ◽  
Daniel Leniart ◽  
Emil Straka

2006 ◽  
pp. 89-95 ◽  
Author(s):  
Catalina Mocioiu ◽  
Georgeta Jitianu ◽  
Maria Zaharescu

Lead-containing glasses have been used from the ancient time. Recently, due to the possible application in optics, electronics, nuclear techniques, wastes inactivation. the interest in these types of glasses has been renewed. For lead waste inactivation, glasses with high amount of PbO in the composition are required, those exhibiting at the same time a high chemical and thermal stability. Thermal behavior of lead-silicate glasses was examined by differential thermal analysis (DTA). Infrared spectroscopy was used to investigate the structure of the glasses. The spectra were interpreted in terms of the structures of silicate group by comparison with the spectra of other silicate crystals. The DTA and infrared data were correlated with the chemical stability tests.


1996 ◽  
Author(s):  
Eugeni M. Dianov ◽  
Dmitry S. Starodubov ◽  
Leonid B. Glebov ◽  
A. I. Ignat'ev ◽  
Nikolai V. Nikonorov ◽  
...  

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