M. A. Korchagin, E. G. Avvakumov, G. G. Lepezin, O. B. Vinokurova, “Thermal explosion and self-propagating high-temperature synthesis in mechanically activated SiO<nobr>$_2$</nobr>–Al mixtures”, Fizika Goreniya i Vzryva, 2014, Volume 50, Issue 6,Pages <nobr>21

This article is cited in 12 papers

Thermal explosion and self-propagating high-temperature synthesis in mechanically activated SiO$_2$–Al mixtures

M. A. Korchagin^ab, E. G. Avvakumov^a, G. G. Lepezin^c, O. B. Vinokurova^a

^a Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630128, Russia
^b Tomsk State University, Tomsk, 634050, Russia
^c Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

Abstract: A thermal explosion and self-propagating high-temperature synthesis in low-calorific SiO$_2$–Al mixtures subjected to preliminary mechanical activation are obtained. Results of x-ray and electron-microscopic investigations of the microstructure and phase composition of activated mixtures and reaction products are reported. It is found that complete reduction of quartz by aluminum occurs only in the thermal explosion mode.

Keywords: aluminothermal reduction of SiO$_2$, mechanical activation, thermal explosion, self-propagating high-temperature synthesis.

UDC: 541.124

Received: 06.11.2013