105 articles – 153 references  [version française]
Detailed view Article in peer-reviewed journal
Journal of Crystal Growth 336, 1 (2011) 77-81
Nitrogen reaction with silicon: Investigation of Si undercooling and Si(3)N(4) growth.
M. Beaudhuin1, K. Zaidat1, T. Duffar1, M. Lemiti2

The interaction of nitrogen with liquid and solid silicon at high temperature is investigated in an electromagnetic levitation set-up. It is shown that the nucleation undercooling of Si decreases monotonically from 300 to 1 K when the concentration of nitrogen in the solidified droplet increases from 0 to 600 ppmw. Several alpha- and beta-Si(3)N(4) morphologies are observed and their growth conditions are linked to the various stages of the Si droplet cooling down. It follows that electromagnetic levitation is a valuable tool for investigation of the chemical behavior of highly reactive liquids at high temperature. (C) 2011 Elsevier B.V. All rights reserved.
1:  SIMAP - Science et Ingénierie des Matériaux et Procédés
2:  INL - Institut des nanotechnologies de Lyon - Site d'Ecully