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IR and Raman studies and effect of γ radiation on crystallization of some lead borate glasses containing Al2O3

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Abstract

IR and Raman spectra of glass ceramics based on PbO-Cr2O3-B2O3glass composition system have been studied. The bands characteristic of BO3. and BO4 functional groups are present in all the samples. An incorporation of Al2O3(up to ∼ 5 mol%) in the initial glass composition considerably changes the glass network structure and relative concentrations of BO3 and BO4 groups. The composition 50 PbO-20 Cr2O3-25 B2O3-5 Al2O3(in mol%) reveals a maximum fraction of boron in the BO4 group. A sample of this composition heat treated at 850° C for 25 h shows a maximum crystallization fraction with Pb2O · CrO4 as a prominent crystalline phase. The glasses irradiated withγ rays inhibit the crystallization into the Pb2O · CrO4 phase. They also show relatively smaller thermal conductivity.

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Authors and Affiliations

  1. Advanced Centre for Materials Science, Indian Institute of Technology, 208016, Kanpur, India

    Shankar Ram

  2. DMSRDE, 208013, Kanpur, India

    Kanik Ram

Authors
  1. Shankar Ram
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  2. Kanik Ram
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Ram, S., Ram, K. IR and Raman studies and effect of γ radiation on crystallization of some lead borate glasses containing Al2O3 . J Mater Sci 23, 4541–4546 (1988). https://doi.org/10.1007/BF00551957

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  • DOI: https://doi.org/10.1007/BF00551957

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