METHOD FOR CREATING ORIENTED STRUCTURES BASED ON FERROELECTRIC POWDER Russian patent published in 2023 - IPC H10N30/07 H10N30/92 

FIELD: ferroelectric powders.

SUBSTANCE: invention is related to methods for creating oriented structures from ferroelectric powders, which can be used in various devices for recording and controlling electromagnetic radiation. Ferroelectric powder is poured onto the first electrode, the second electrode is placed in parallel above the first one, under which a temperature change device is installed, the working plane of which is greater than or equal to the area of the structure being manufactured. A source of ultrasonic radiation directed upwards is installed on the lower side of the temperature change device. Both electrodes and the source of ultrasonic radiation are connected to a voltage source. Power is then simultaneously applied to the temperature changer, the high voltage electrodes and the ultrasonic source. The powder is oriented by turning the particles along the electric field line. After the powder particles are oriented along the electric field and their position is stabilized, the power to the electrodes and the ultrasonic source is turned off. After that, the entire volume of the powder is effused with a fixing compound. The temperature of the structure is increased by the heating element and maintained until the fixing compound dries.

EFFECT: increased efficiency, reduced time for creating a structure.

1 cl, 2 dwg