FIELD: chemistry.
SUBSTANCE: invention can be applied in obtaining ultradispersed powder oxides of fusible metals used in ceramics, chemical power sources, catalyst matrixes and other fields. The method of obtaining ultradispersed metal oxides involves an electric discharge of amplitude over 500 V, pulse duration over 100 microseconds and under 2500 microseconds between needle points produced by stretching molten metal or metal mix in a gas oxygen-containing medium. Voltage pulse is applied to the needle point in the moment of the melt disruption. The method uses a voltage pulse generator including a step-up transformer comprising a magnetic core, two powerful composite transistors and a power source with one pole connected to the common point of transistor emitters through a throttle, and another pole connected to the common point of inductive loads of the transistor collectors. Primary transformer coils are used as inductive loads; collectors of each transistor are connected to the base of another transistor through the serial capacitor and variable resistors, while the bases of the transistors are connected through the respective resistors to that power source pole, to which collector loads of the transistors are connected; output voltage is yielded at the secondary transformer coil.
EFFECT: obtaining ultradispersed metal oxides with fractal structure clean of metal particles.
3 cl, 6 ex, 10 dwg
