Journal of Materials Science

, Volume 30, Issue 6, pp 1495–1499 | Cite as

Preparation of tetragonal ZrO2-Gd2O3 powders

  • S. Bhattacharyya
  • D. C. Agrawal


ZrO2-Gd2O3 alloys containing 2,3,5 and 8 mol.% Gd2O3 have been prepared by mixed oxide (MO), hybrid sol-gel (SG), and co-precipitation (CP) routes. No tetragonal (t) phase is retained in the MO method, while 100% t phase is obtained in the calcined CP samples; the SG method leads to only partial stabilization of the t phase. Washing of the CP powders with propan-2-ol leads to unagglomerated powders with increased specific surface area (145 versus 89 m2g−1) and sintered density (98% versus 79%). Cubic and t′ phase also appear on sintering the samples with >2 mol.% Gd2O3.


Oxide Polymer Specific Surface Material Processing Mixed Oxide 
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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • S. Bhattacharyya
    • 1
  • D. C. Agrawal
    • 1
  1. 1.Materials Science ProgrammeIndian Institute of TechnologyKanpurIndia

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