Author： Komatsu T. Mohri H.
Publisher： Society of Glass Technology
ISSN： 0031-9090
Source： Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B, Vol.40, Iss.5, 1999-10, pp. : 257-263
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The glass forming region in the system of PbO–CdO–TeO2 was determined and the structure of glasses and crystalline phases were examined by Raman scattering spectra. The wide glass formation was obtained in the range (mol%)of 10–40PbO, 0–30CdOand 40–90TeO2. The melt quenched sample of 50PbO.50TeO2 is not amorphous but the transparency of the crystalline sample is excellent. The formation of the crystalline phases of CdTe2O5 and CdTeO3 were confirmed in the melt quenched samples without or with low PbO content and the features of their Raman spectra were clarified. It was demonstrated from the Raman spectra that the number of Te–O–Te linkages in the glasses and thus the network connectivity decreases with increasing PbO and CdO contents. The glasses heat treated at 320°C (below the crystallisation temperature 364°C) in nitrogen or (93%Ar+7%H2) atmosphere became shiny black slightly with keeping a good transparency and it was found that an unknown crystalline phase (not CdTe or Cd2PbO4 semiconductor) was formed at the surface.
Related content
By Komatsu T. Kawasaki S. Honma T. Benino Y. Fujiwara T. Sato R.
Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B, Vol. 45, Iss. 2, 2004-04 ,pp. :
Access to resources
Recommend
