A new modification of silicon obtained under the effect of explosion

Condensed products of explosion of mixtures containing lead and silicon are investigated by x-ray phase, electron microscopic, x-ray spectral, and chemical methods. The exploded mixtures were based on tetrazene or hexogen. The mass content of silicon in the mixtures was 20%. The explosion was initiated by lead azide with a mass of 0.1 g. The condensed products of the explosion contained a solid solution of lead-silicon based on Pb(I), a new modification of silicon with a face-centered cubic lattice witha = 5.935±0.002 A, and exhibited heteroepitaxy.