SHS production of heat-shield materials from minerals and residual products: Influence of preliminary mechanochemical treatment and modifying agents

Zulkhair Aimukhametovich Mansurov, Nina N. Mofa, Б. С. Садыков, Ж. Ж. Сабаев

2016

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DOI 10.3103/s1061386216030080
Data confidence 70 medium
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Abstract

We report on preparation of porous refractory ceramics from natural quartz sand and industrial wastes (fly ash and wastes of concrete production) by SHS in a mode of thermal explosion with preliminary mechanochemical treatment of charge mixtures in the presence of carbonaceous modifying agents (activated carbon and polystyrene). The Al 2 O 3 –AlN-based composite synthesized in optimized conditions exhibited low thermal conductivity [0.185–0.228 W/(m K)], finely porous structure, and high compression strength (30–96 MPa).