Study of Preparation of Prescribed Pore Configuration in Zirconium Dioxide Ceramic Due to Carbamide Directional Solidification

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Abstract

The possibility is demonstrated of preparing porous ceramic based on zirconium dioxide micro- and nanopowder using crystallization of carbamide in a suspension. Different suspension cooling regimes are studied for oxide powders (in air, in a freezing chamber, in snow). It is shown that sintered ceramic porosity and pore size depend directly on suspension composition and cooling method. As a result of this ceramic is prepared with porosity of 30 – 60% with pore diameter of 0.2 – 200 μm.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalRefractories and Industrial Ceramics
DOIs
Publication statusAccepted/In press - 28 Mar 2017

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Keywords

  • carbamide
  • pore-forming additive
  • porous ceramic
  • sintered ceramic structure
  • zirconium dioxide

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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