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...
Saved in:
Published in | International journal of self-propagating high-temperature synthesis Vol. 25; no. 3; pp. 166 - 172 |
---|---|
Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York
Allerton Press
01.07.2016
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
Cover
Loading…
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 |