Durability of porous zirconia powders in caustic

M. Nevant, L. C. Klein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Zirconia is an extremely durable ceramic in a variety of environments and pH conditions. Our objective was to synthesize zirconia powders by the sol-gel process and evaluate their durability in NaOH. Durability was recorded as weight loss per day and cumulative weight loss. Powders were prepared by hydrolysis of zirconium oxychloride with bubbling ammonia and carbon dioxide. Powders prepared at pH = 0.5 were somewhat more durable than those prepared at pH = 0.3 or pH > 0.7. The durability improved to some degree with heat treatment. For comparison, powders were prepared by hydrolysis of zirconium isopropoxide. They proved more durable than the powders from zirconium oxychloride. However, in comparison to alumina, the as-dried zirconia powders were much more durable in NaOH, suggesting the use of zirconia coatings on porous alumina membranes.

Original languageEnglish (US)
Title of host publicationKey Engineering Materials
Pages137-142
Number of pages6
Volume61-62
StatePublished - 1991
Externally publishedYes
EventProceedings of the 2nd International Conference on Inorganic Membranes - ICIM2-91 - Montpellier, Fr
Duration: Jul 1 1991Jul 4 1991

Other

OtherProceedings of the 2nd International Conference on Inorganic Membranes - ICIM2-91
CityMontpellier, Fr
Period7/1/917/4/91

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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