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01-08-2019 | SCIENCE FOR CERAMIC PRODUCTION

Improvement of the Technology of High-Porosity, Permeable, Cellular, Ceramic Materials

Authors: A. V. Bespalov, V. N. Grunskii, N. A. Makarov, M. A. Vartanyan, V. I. Ignatenkov, A. P. Fedoseev, O. Yu. Sal’nikova

Published in: Glass and Ceramics | Issue 3-4/2019

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Abstract

The rheological properties of corundum suspensions were studied. It is shown that to prepare corundum slurry in obtaining ceramic, high-porosity, permeable, cellular materials (HPCM) by the method of duplicating the structure of polymer matrices the minimum possible ratio S : L of the disperse phase and the dispersion medium is 2.3 : 1 and the weight content of polyvinyl alcohol in the corundum slurry is 1 – 3%. It was proved experimentally that corundum suspensions with such a ratio of the disperse phase and the dispersion medium are coagulation structures with characteristic thixotropic behavior.

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Stresses directed along the tangent to the surface which result in shear deformation.

Viscosity under an applied load.

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Title: Improvement of the Technology of High-Porosity, Permeable, Cellular, Ceramic Materials
Authors: A. V. Bespalov
V. N. Grunskii
N. A. Makarov
M. A. Vartanyan
V. I. Ignatenkov
A. P. Fedoseev
O. Yu. Sal’nikova
Publication date: 01-08-2019
Publisher: Springer US
Published in: Glass and Ceramics / Issue 3-4/2019
Print ISSN: 0361-7610
Electronic ISSN: 1573-8515
DOI: https://doi.org/10.1007/s10717-019-00149-8

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