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      https://www.ias.ac.in/article/fulltext/boms/003/04/0435-0442

    • Keywords

       

      Activation energy; densification; grain growth; lanthanum chromite; sintering kinetics

    • Abstract

       

      The sintering behaviour of lanthanum chromite with the addition of 1 to 3 wt% TiO2 was studied. Densification was examined as a function of sintering temperature and TiO2 concentration. The results showed that pure LaCrO3 could not be densified to >75% of the theoretical density, while the densities exceeding 90% of the theoretical were achieved with 3 wt% titania addition at 1600° C.

      Metallographic study reveals a normal grain growth following the rate equationD2D02=kt. Activation energies both for densification and grain growth have been estimated to be ≈ (80±5) k cal/mole in case of 3 wt% TiO2 addition.

    • Author Affiliations

       

      K P Bansal1 S Kumari1 B K Das1 G C Jain1

      1. Division of Materials, National Physical Laboratory, New Delhi - 110 012, India
    • Dates

       
  • Bulletin of Materials Science | News

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