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

Autor: K. S. Kamyshnaya, T. A. Khabas
Rok vydání: 2017
Předmět:
Zdroj: Refractories and Industrial Ceramics. 57:490-495
ISSN: 1573-9139
1083-4877
DOI: 10.1007/s11148-017-0010-6
Popis: 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.
Databáze: OpenAIRE