1. Home
    2. Journals
    3. Bulletin of Materials Science
    4. Volume 34
    5. Issue 1

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/034/01/0125-0128

    • Keywords

       

      Dielectrics; ceramics; sintering; microwave; dielectric resonators.

    • Abstract

       

      The effect of PbO addition on the structural, processing and microwave dielectric properties of LnTiTaO6 (Ln = Ce, Pr and Nd) ceramics are reported. Conventional solid state ceramic route was used for the preparation of samples. Phase pure LnTiTaO6 (Ln = Ce, Pr and Nd) ceramics are prepared at a calcination temperature of 1300°C. The samples are sintered at optimized temperatures. Addition of PbO reduces the sintering temperature. The crystal structure of the materials was analysed using X-ray diffraction techniques and the surface morphology of the sintered samples was analysed using scanning electron microscopy. The dielectric constant at microwave frequency range decreases for higher PbO addition for all the samples but the quality factor improves on small PbO addition. The thermal stability of resonant frequency was also improved with PbO addition on all the systems. A number of samples with improved microwave dielectric properties were obtained on all the systems suitable for practical applications.

    • Author Affiliations

       

      H Padma Kumar1 J K Thomas2 Annamma John3 Sam Solomon3

      1. Department of Physics, W.M.O. Arts and Science College, Wayanad 673 122, India
      2. Department of Physics, Mar Ivanios College, Trivandrum 695 015, India
      3. Department of Physics, St. John’s College, Anchal 691 306, India

    • Dates

       
      Published
      February 2011
      Manuscript received
      12 August 2009
      Manuscript revised
      27 February 2010

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2022-2023 Indian Academy of Sciences, Bengaluru.

Contact | Site index