For the titania syntheses by a flame CVD process, the mean particle size has been calculated by the kinetic theory at different positions in the reactor and different operational conditions.

• 本文采用火焰CVD法制备纳米颗粒,针对其制备纳米颗粒材料过程中颗粒碰撞长大现象,发展了火焰CVD法制备纳米颗粒材料过程的动力理论。