KINETICS OF NUCLEATION DURING SILANE AND DICHLOROSILANE OXIDATION

The kinetics of nucleation in chain branching processes of silane and dichlorosilane oxidation was investigated at low pressures and at room temperature. For the first time, two regimes of nucleation were obser ved, corresponding to mixture compositions inside self-ignition and fl ammability limits, respectively. The effect of an electrostatic field on the nucleation kinetics during the chain oxidation of dichlorosilan e was revealed. Also for the first time, the conductivity of reacting mixtures of silane and dichlorosilane with oxygen was observed during the isothermal chain branching explosion, which indicated the signific ance of charged species in these processes.