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

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 (acti...

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Bibliographic Details
Published inInternational journal of self-propagating high-temperature synthesis Vol. 25; no. 3; pp. 166 - 172
Main Authors Mansurov, Z. A., Mofa, N. N., Sadykov, B. S., Sabaev, Zh. Zh
Format Journal Article
LanguageEnglish
Published New York Allerton Press 01.07.2016
Springer Nature B.V
Subjects
Activated carbon treatment
Chemistry and Materials Science
Fly ash
Materials Science
Polystyrene resins
Thermal conductivity
mechanochemical treatment
heat-shield materials
fly ash
aerated concrete
thermal explosion
quartz sand
SHS
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Summary: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).
ISSN:1061-3862
1934-788X
DOI:10.3103/S1061386216030080