Abstract:
The effect of the parameters of a charge of TNT and RDX alloys and their detonation conditions on the coagulation of carbon on the isentropes of detonation products. In the region of liquid nanocarbon, coagulation occurs by merging of nanodroplets and in the region of solid nanocarbon, by their joining (sintering) simultaneously with crystallization. Therefore, specific surface of nanodiamonds calculated from their sizes is always greater than the measured value. Separation of nanodroplets in the detonation products accelerates their coagulation and cooling due to the flow of cooler products around them. Evaluation of the distance between the surfaces of nanodroplets various alloys TG shows that they are small, smaller than nanodroplets. The conditions of rapid merging of nanodroplets during different deceleration of the products by rigid obstacles. An increase of up to five orders of magnitude in the size of diamond particles was established experimentally. The factors responsible for the change in the coagulation rate with the transition from heterogeneous to homogeneous TNT/RDX alloy with decreasing size of TNT/RDX particles.
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