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2005
Magnesium
I 1200
27- 022
A Solid-State Metathesis Route to MgSiN2. — The title compound is synthesized by
a self-propagating solid state reaction initiated by bringing a flame with temperature
≥ 1100 °C into contact with a pressed SiO2/Mg3N2 pellet. The degree of crystallinity of
the product is governed by the SiO2:Mg3N2 ratio utilized in the reaction as well as the
reaction initiation temperature. Several other Si-containing compounds such as sand,
ground quartz, bottle glass, and rice hull ash are used instead of SiO2. Since rice hull
ash is an industrial waste product, applications in the synthesis of the title compound
could prove to be environmentally friendly. The title compound holds promise for
applications requiring materials with high thermal conductivity. — (BLAIR, R. G.;
ANDERSON, A.; KANER*, R. B.; Chem. Mater. 17 (2005) 8, 2155-2161; Dep.
Chem. Biochem., Univ. Calif., Los Angeles, CA 90095, USA; Eng.) — W. Pewestorf
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