N. M. Rubtsov, G. I. Tsvetkov, V. V. Azatyan, and V. I. Chernysh
Institute of Structural Macrokinetics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
Received December 21, 1999
Abstract—It is found experimentally that the initial pressure of aerosol formation progressively decreases with
an increase in the initial concentration of dichlorosilane in the initiated ignition of dichlorosilane mixtures with
oxygen at 293 K. The dependence of the maximal aerosol concentration on the total pressure is S-shaped.
Ageneralized kinetic scheme is proposed that qualitatively describes the regularities observed in the experi-
ments. The most important calculated parameters are the heat evolved in the chain process and the dependence
of the pressure of the saturated vapor of a new phase on temperature. It is shown that the specific features of
branched-chain processes under nonisothermic conditions determine the kinetic regularities of new phase formation.
The optimal range of pressures is recommended for obtaining particles with as low dispersivity as possible.
Pleiades Publishing home page | journal home page | top
If you have any problems with this server, contact webmaster.