The resons for abrupt increase in combustion velocity and pulsation period of vapour-gas cavity development due to introduction of the salts of metals with variable valency into energy extracting compositions are studied. As catalysts such salts of metals as chlorates, perchlorates and nitrates were used. They are the salts of nickel, cobalt and ferrum. It is shown that the dependencies of the cavity pulsation period on the catalyst concentration are saturating curves with some overbending. The existence of the bending point shows that there are two zones of the combustion velocity which are independent on the catalyst concentration. The mechanism of the reaction changes in the region between the zones. Catalysis properties of the metal salts are connected with some decrease in the water activeness owing to the chemical complex formation. The volumes with low concentration of water turn out to be more capable for the react-ion. The data of investigations allow to obtain necessary values of the pulsation period and energy for vapour-gas cavity under electric chemical explosions by adjusting the values of the discharge gap, concentration of water and the catalyst in the exothermal liquid for a definite technology.
展开▼
