文档介绍：Combustion, Explosion, and Shock Waves, Vol. 38, No. 3, pp. 360–364, 2002
Physical Model of Explosive Synthesis of Ultrafine Aluminum Oxide
A. A. Bukaemskii1 UDC + +
Translated from Fizika Goreniya i Vzryva, Vol. 38, No. 3, pp. 121–126, May–June, 2002.
Original article submitted October 13, 2000; revision submitted August 30, 2001.
The paper considers a physical model for the explosive synthesis of ultrafine aluminum
oxide, which assumes that in pression wave the starting material is divided into
layers with different states of aggregation and grain-positions. The relation-
ship between the synthesis conditions and the properties of the product is studied. It
is shown that the yield of the ultrafine fraction in the synthesized powder depends on
the conditions of metal oxidation during dispersion, shock-wave parameters, and the
velocity of dispersion of the starting material into the gas medium of the explosion
chamber. Experimental data are used to determine the layer sizes and the constants
characterizing the possibility of vapor-phase oxidation of aluminum during explosive
synthesis. In the coordinates corresponding to the process parameters (yield of the
ultrafine fraction and the masses of the explosive and the starting metal), a synthesis
surface is constructed and optimum parameters for production of ultrafine material