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Investigation on pore structure and small-scale agglomeration behaviour in liquid phase sintered SiC using small angle neutron scattering

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Abstract

Mesoscopic density fluctuations in liquid phase sintered silicon carbide have been investigated using small angle neutron scattering (SANS). The increase in the additives results in the modification in the pore size distribution and to some extent the total porosity. SANS revealed a mass fractal nature of the agglomerated matrix microstructure. The fractal dimension of the matrix does not change appreciably with the additives although the upper cut-off value of the fractal decreases significantly with the increase in the additives. The liquid phase sintering due to the presence of additives helps to achieve higher level of densification. However, the agglomeration hinders achievement of the fully dense pellets.

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Authors and Affiliations

  1. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India

    D. Sen, J. Bahadur & S. Mazumder

  2. Energy Conversion Materials Section, Bhabha Atomic Research Centre, Vashi Complex Navi Mumbai, 400 705, India

    T. Mahata, M. Syambabu & P. K. Sinha

Authors
  1. D. Sen
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  2. J. Bahadur
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  3. S. Mazumder
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  4. T. Mahata
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  5. M. Syambabu
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  6. P. K. Sinha
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Correspondence to D. Sen.

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Sen, D., Bahadur, J., Mazumder, S. et al. Investigation on pore structure and small-scale agglomeration behaviour in liquid phase sintered SiC using small angle neutron scattering. Pramana - J Phys 71, 979–984 (2008). https://doi.org/10.1007/s12043-008-0210-1

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  • DOI: https://doi.org/10.1007/s12043-008-0210-1

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