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Crystallization and microstructural behaviour of strontium titanate borosilicate glass ceramics with Bi2O3 addition

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Abstract

Glasses in the system (65 −x) [SrO·TiO2] − (35) [2SiO2·B2O3] − (x) [Bi2O3] wherex = 1, 5, 10 (wt%) prepared by melting in alumina crucible (1375–1575 K), were subjected to different heat treatment schedules followed by DTA studies. Crystallization study showed the formation of Sr2B2O5 as major phase at low temperature (≈950°C) heat treatment. At high temperatures, TiO2 and SrTiO3 with or without Sr2B2O5 crystallize out depending on heat treatment. In this paper, the influence of variation in composition, thermal treatment on the nature of crystallizing phases as well as on the resulting microstructures are investigated through XRD, IR and SEM. Uniform crystallization was achieved by suitable addition of Bi2O3 and proper heat treatment.

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  1. O P Thakur

    Present address: School of Materials Science and Technology, Institute of Technology, Banaras Hindu University, 221 005, Varanasi, India

Authors and Affiliations

  1. Department of Ceramic Engineering, Banaras Hindu University, 221 005, Varanasi, India

    O P Thakur, Devendra Kumar, Om Parkash & Lakshman Pandey

  2. Ferrite Division, Solid State Physics Laboratory, 110 054, Delhi, India

    Om Parkash

  3. Department of Post-graduate Studies and Research in Physics, Rani Durgavati Vishwavidyalaya, 482 001, Jabalpur, India

    Lakshman Pandey

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  1. O P Thakur
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  2. Devendra Kumar
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  3. Om Parkash
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  4. Lakshman Pandey
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Thakur, O.P., Kumar, D., Parkash, O. et al. Crystallization and microstructural behaviour of strontium titanate borosilicate glass ceramics with Bi2O3 addition. Bull Mater Sci 20, 67–77 (1997). https://doi.org/10.1007/BF02753214

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  • DOI: https://doi.org/10.1007/BF02753214

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