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

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1 Citation (Scopus)

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

Fingerprint

Zirconium
Urea
Solidification
Suspensions
Porosity
Cooling
Snow
Freezing
Pore size
Crystallization
Powders
Oxides
Air
Chemical analysis
zirconium oxide

Keywords

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

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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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.",
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author = "Kamyshnaya, {K. S.} and Khabas, {T. A.}",
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AB - 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.

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KW - zirconium dioxide

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