The mechanism of interaction of the components of porcelain mass based on the Gusevsky stone in the presence of an additive of complex action - molasses molasses is considered. The possibility of its use as an environmentally friendly hardening additive in the manufacture of porcelain products based on unconventional raw materials by a single firing is shown. Tab. 1, ill. 2, bibliography: 7 titles.
The composition of masses for facing ceramic tiles based on self-disintegrating highly basic electric steel-melting slags has been developed. The physical and mechanical properties of the fired tiles meet the requirements of GOST 6141-91. Tab. 1, bibliography: 1 titles.
The processes of synthesis of the starting materials during chemical deposition for magnesium spinel have been studied. It has been established that the choice of the initial salts (nitrates, chlorides, sulfates) has practically no effect on the phase composition of the heat treatment products, but it has a significant effect on the properties of the initial sediments. Il. 1, bibliography: 7 titles.
A technology has been developed for the manufacture of gypsum-ceramic material on the basis of chemical production waste - fluoroanhydrite. The resulting material is easy to grind and polish, does not accumulate static electricity, and has a surface texture similar to marble. Tab. 1, ill. 4, bibliography: 5 titles.
The nature of the change in the technological parameters of plastic ceramic masses, the moisture content of which approaches the lower limit of plasticity, is considered. It is shown that the use of vibration contributes to the "healing" of discontinuities in the mass continuity, a decrease in internal stresses and, with lower molding efforts, allows to improve the physical and mechanical properties of products. Il. 3, bibliography: 2 titles.
The advantages of quasi-isostatic pressing in batch production are shown. The versatility and cost-effectiveness of the method made it possible to widely introduce it for the mass production of products at a number of ceramic plants. Il. 5, bibliography: 4 titles.
The possibility of obtaining ceramic pigments with a mullite structure based on natural minerals - kaolinite and topaz - has been investigated. It was found that these minerals are promising for the synthesis of ceramic pigments. The resulting pigments are resistant to high temperatures and varied in color. Tab. 4, ill. 1, bibliography: 6 titles.
The interaction of oxides in the Al 2 O 3 - ZrO 2 - MgO system has been studied in the preparation of ceramics using fibrous components. It was found that during the heat treatment of ternary systems, the component that stabilizes the tetragonal structure of zirconium dioxide interacts with the aluminum oxide matrix, forming spinel interlayers at the fiber-matrix phase boundary. The use of highly dispersed fibers as a starting component for the production of ceramics, as well as the addition of a fibrous filler to the gel-like matrix, makes it possible to obtain composite ceramics with increased strength. Tab. 1, ill. 2, bibliography: 7 titles.
The features of sintering ceramics based on aluminum oxide with a eutectic zinc-containing additive have been investigated. It has been established that the introduction of 1% of a sintering additive into GLMK alumina makes it possible at a temperature of 1450 ° C to obtain ceramics with zero open porosity, an average density of 3.84 g / cm 3 and a ultimate bending strength of 310 40 MPa. The ceramics has a closed porosity of about 1% and an average size of corundum crystals of 5-8 microns. Tab. 2, ill. 1, bibliography: 6 titles.
The current situation of obtaining thermo- and heat-resistant technical ceramics is reflected. The optimal conditions for the synthesis and properties of mullithotialite ceramic materials based on chemically deposited mixtures have been determined. Tab. 1, ill. 2, bibliography: 17 titles.
