Porous Ceramics on the Basis of Low-Melting Clays and Slurries
Results of the study of possibility to obtain porous wall ceramic materials from the masses on the basis of a composition of low-grade clay raw materials and non-plastic componentsaccording to the technology of making the initial raw mix porous and subsequent fixation of the porous structure by burning are presented.Compositions of masses ensuring the obtainingof necessary porosity and mechanical strength of a ceramic matrix on the basis of low-melting clays and slurries of different origin have been determined. The need to introduce thealuminum powder into the mass composition as an additional pore-forming additive in an amount of 0.1-1.3% depending on the amount of calcium hydroxide in the mixes is revealed.The reasonability to use the broken glass in an amount of 15-20% for accelerating the process of the ceramic matrix sintering has been determined.