Spectroscopic Analysis of the Structure and Properties of Alkali Tellurite Glasses

Authors

  • Jong Heo,

    1. Fiber Optic Materials Research Program, and Center for Ceramic Research, Rutgers University, Piscataway, New Jersey 08855–0909
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    • Member, American Ceramic Society.

    • *

      Fiber Optic Materials Research Program.

    • Center for Ceramic Research.

  • David Lam,

    1. Fiber Optic Materials Research Program, and Center for Ceramic Research, Rutgers University, Piscataway, New Jersey 08855–0909
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    • *

      Fiber Optic Materials Research Program.

    • Center for Ceramic Research.

  • George H. Sigel Jr.,

    1. Fiber Optic Materials Research Program, and Center for Ceramic Research, Rutgers University, Piscataway, New Jersey 08855–0909
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    • Member, American Ceramic Society.

    • Center for Ceramic Research.

  • Edgar A. Mendoza,

    1. Fiber Optic Materials Research Program, and Center for Ceramic Research, Rutgers University, Piscataway, New Jersey 08855–0909
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    • Member, American Ceramic Society.

    • Department of Materials Science and Engineering. Pohang Institute of Science and Technology (POSTECH), Pohang, Korea.

  • David A. Hensley

    1. Fiber Optic Materials Research Program, and Center for Ceramic Research, Rutgers University, Piscataway, New Jersey 08855–0909
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    • Department of Materials Science and Engineering. Pohang Institute of Science and Technology (POSTECH), Pohang, Korea.


  • C. G. Pantano-contributing editor

  • Presented at the 93rd Annual Meeting of the American Ceramic Society, Cincinnati, OH, April 30, 1991 (Glass and Optical Materials Division, Paper No. 37-G-91).

Abstract

Structural development of tellurite glasses with the addition of Li2O and Na2O has been studied using infrared, Raman, and X-ray photoelectron spectroscopies. The increase in intensity of the peak at 755 cm−1 in the infrared spectra as compared to the peak at 620 cm −1 suggests the transformation of TeO4 building units to TeO3 pyramids with the addition of alkali oxide. Proposed structural change is further supported by the strong compositional dependence of the 755-cm−1 peak in the Raman spectra as well as by the formation of a shoulder in the O 1s peak of X-ray photoelectron spectra. In contrast to alkali silicate glasses, formation of nonbridging oxygens with the addition of alkali oxide is not observed.

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