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Journal of Materials Science

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

Preparation of tetragonal ZrO2-Gd2O3 powders

  • S. Bhattacharyya
  • D. C. Agrawal
Papers

Abstract

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.

Keywords

Oxide Polymer Specific Surface Material Processing Mixed Oxide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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