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    • Keywords


      Glass-ceramic; lithium silicates; nucleation; minor additives; thermal expansivity; sealing; MASNMR

    • Abstract


      Several glass-ceramic compositions based on lithium silicates have been examined using thermal expansivity, X-ray diffraction, electrical conductivity, electron microscopy and solid state NMR studies. Role of P2O5 in nucleation and of Al2O3 in smoothening expansion behaviour have been particularly highlighted. Magic angle spinning NMR has been used to ascertain presence of Al in tetrahedral positions in the glassy phase.

    • Author Affiliations


      R N Das1 2 B K Chandrasekhar1 2 K J Rao1

      1. Materials Research Centre, Indian Institute of Science, Bangalore - 560 012, India
      2. Ceramic Technological Institute, Bharat Heavy Electricals Ltd, Bangalore - 560 012, India
    • Dates

  • 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

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