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    • Keywords


      Ceria; sintering; pores; fractal; neutron scattering.

    • Abstract


      Ceria powders were prepared by gel combustion process using cerium nitrate and hitherto unexplored amino acids such as aspartic acid, arginine and valine as fuels. The powders have been characterized by X-ray and laser diffraction. Cold pressed compacts of these powders have been sintered at 1250°C for 2 h. Internal pore microstructure of the sintered compacts has been investigated by small angle neutron scattering (SANS) over a scattering wave vector 𝑞 range of 0.003–0.17 nm-1. The SANS profiles indicate surface fractal morphology of the pore space with fractal dimensionality lying between 2.70 and 2.76.

    • Author Affiliations


      A K Patra1 P U Sastry1 Srirupa T Mukherjee2 Vinila Bedekar2 A K Tyagi2

      1. Solid State Physics Division; Bhabha Atomic Research Centre, Mumbai 400 085, India
      2. Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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