The results of research on the production of fused materials based on kaolinite clay and high-alumina waste using a concentrated radiant flux are presented. The phase composition, microstructure, and elemental composition of the synthesized materials have been determined. It has been established that for the formation of an optimal microstructure in the form of acicular mullite with a multidirectional orientation, the most preferable is the mass content of the additive 10 - 20 & # 37; and the rate of cooling of the melt & # 8776; 10 3 & # 176; C / s
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