The resulting samples are highly porous materials with cellular structure on the basis of alumina GN-1, with a grain size of 40-60 microns and the reinforcing component of porcelain PFL-1. The most durable samples with cell sizes of approximately 0.3-0.5 and 0.8-1 mm, respectively, was obtained from a composition of 50% alumina and 50% of the porcelain after firing at 1450 °C. These samples had a porosity of 88-94%, the compressive strength is 2.3 to 3.5 MPa. The open porosity in the jumpers was 40-50%, the ave-rage pore radius is in the jumpers of 1-2 µm.
ceramics, open porosity, cellular materials, strength, granular powders
1. Berkman A. S. Poristaya pronicaemaya keramika. - M.: Stroyizdat, 1969. - 170 s.
2. Twigg M. V., Richardson J. D., et al. Preparation and properties of ceramic foam catalyst supports // Preparation of catalysts VI (Elsevier Amsterdam, The Netherland). - 1994. - P. 345-359.
3. Belyakov A. V., Bakunov V. S. Evolyuciya struktury v peredelah tehnologii keramiki // Novye ogneupory. - 2006. - № 2. - S. 55-62.
4. Thermal and mechanical response of industrial porous ceramics / G. Bruno, I. Pozdnyakova, A. M. Efremov [et al.] // Mater. Sci. Forum. - 2010. - Vol. 652. - P. 191-196.
5. Zhao C. Y. Review on thermal transport in high porosity cellular metal foams with open cells // International journal of heat and mass transfer. - 2012. - Vol. 55, № 13. - P. 3612-3638.
6. Gibson L. J., Ashby M.F. Cellular solids, structures and properties. - Pergamon press, Oxford, UK. - 1988. - 111 p.
7. Oficial'nyy sayt. Proizvodstvenno-torgovaya firma «KERAMIKA GZhELI» [Elektronnyy resurs]. URL: http://ceramgzhel.ru/poleznaya-infor/markirovka-keramicheskix.html.
8. Sabrina S. A., Denilson A. S. Physico-chemical analysis of flexible polyurethane foams containing commercial calcium carbonats // Materials research. - 2008. - Vol. 11, № 4. - R. 8-12.
9. Lin Y. M., Li C. W., Wang C. A. Effects of mullite content on the properties and microstructures of porous Anorthimullite composite ceramics // Journal of inorganic materials. - 2011. - Vol. 2, № 10. - P. 1095-1100.
