Crystal growth bubble eliminating device and method for eliminating crystal growth bubbles

Abstract

The invention discloses a crystal growth bubble eliminating device and a method for eliminating crystal growth bubbles, and belongs to the technical field of crystal growth. The crystal growth bubble eliminating device comprises a crystal growth groove, a crystal carrying frame, a motor, a connecting shaft and a rotary fan blade, the crystal carrying frame is arranged in the crystal growth groove; the motor is arranged outside the crystal growth tank; the crystal carrying frame is provided with a hollow shaft; the connecting shaft penetrates through the hollow shaft; the connecting shaft is hinged to the rotary fan blade; and the motor drives the rotary fan blades to rotate through the connecting shaft. The purpose of eliminating bubbles on the surface of the crystal carrying frame is achieved under the condition that the solution stability is not affected, the preparation time before crystal growth is saved, and the success rate of crystal growth is effectively increased.

Description

technical field [0001] The invention belongs to the technical field of crystal growth, and in particular relates to a device for eliminating bubbles in crystal growth and a method for eliminating bubbles in crystal growth. Background technique [0002] KDP / DKDP crystal is a kind of multifunctional crystal material with wide application, which can be applied in the fields of laser frequency conversion, parametric oscillation, electro-optical modulation, high-speed Q switch and piezoelectric transducer. Nuclear fusion devices are used to make Pockels cells and laser frequency doubling devices. With the development of laser nuclear fusion technology, the demand for the optical quality, quantity and size of KDP-like crystals in engineering applications continues to increase. This also requires us to make continuous progress in the research on KDP / DKDP crystal growth and processing technology. [0003] During the rapid growth of KDP / DKDP crystals, when the hot growth solution i...

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Problems solved by technology

[0003] During the rapid growth of KDP / DKDP crystals, when the hot growth solution is pumped into the growth tank equipped with crystal racks, a large number of air bubbles are often generated in the crystal growth tank, and these bubbles are adsorbed on the inner wall of the crystal growth tank, loaded On the crystal frame, especially when there are bubbles attached to the surface of the crystal frame, the method of driving the crystal frame to rotate through the stirring motor often cannot completely eliminate the bubbles or the time required to eliminate the bubbles is too long, which delays the growth of the crystal

Due to the large supersaturation of rapid growth, the bubbles on the crystal carrier platform will be wrapped and grow into the crystal, causing defects such as crystal deformity, white streaks, and crystal addition. Therefore, how to quickly eliminate the bubbles without affecting the stability of the solution, is the problem to be solved

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