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Synthesis of CaTiO3 from calcium titanyl oxalate hexahydrate (CTO) as precursor employing microwave heating technique

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Abstract

Calcium titanate, CaTiO3, an important microwave dielectric material and one of major phases in synroc (synthetic rock), a titanate ceramic with potential application for fixation of high level nuclear waste was synthesized from calcium titanyl oxalate [CaTiO (C2O4)2·6H2O] (CTO) by employing microwave heating technique. CTO heated in microwave heating system in air at 500°C for 1 h gave a perovskite, CaTiO3. The product obtained by heating of CTO in the same system at 700°C for the same duration was however, much more crystalline. CaTiO3 obtained by the present method was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and BET surface area measurement.

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Authors and Affiliations

  1. Department of Chemistry, The Institute of Science, 15, Madam Cama Road, Mumbai, 400 032, India

    B. M. Patil, R. S. Srinivasa & S. R. Dharwadkar

  2. Department of Metallurgical Engineering & Materials Science, Indian Institute of Technology, Mumbai, 400 076, India

    R. S. Srinivasa

Authors
  1. B. M. Patil
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  2. R. S. Srinivasa
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  3. S. R. Dharwadkar
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Correspondence to S. R. Dharwadkar.

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Patil, B.M., Srinivasa, R.S. & Dharwadkar, S.R. Synthesis of CaTiO3 from calcium titanyl oxalate hexahydrate (CTO) as precursor employing microwave heating technique. Bull Mater Sci 30, 225–229 (2007). https://doi.org/10.1007/s12034-007-0040-7

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  • DOI: https://doi.org/10.1007/s12034-007-0040-7

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