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首页> 外文期刊>Crystallography reports >Modeling of convection during the growth of Ga (x) In1-x Sb single crystals by the Czochralski method in the presence of ultrasound
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Modeling of convection during the growth of Ga (x) In1-x Sb single crystals by the Czochralski method in the presence of ultrasound

机译:Ga(x)In1-x Sb单晶生长过程中对流建模的超声波方法

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The effect of ultrasound on convective flow in the melt at pulling of Ga0.03In0.97Sb single crystals has been modeled by the light cut method in an ebonite crucible using transparent liquids (water glycerol solution and acetone). It is established the influence of the temperature gradient in the liquid and crystal rotation affect the convection formation. It is shown that introduction of ultrasound at frequencies of 0.72 and 1.44 MHz in the direction parallel to the crucible axis standing wave channel in the liquid without convective flow. The spherical bottom of the crucible increased of the standing wave channel diameter to 30% in the top part of the liquid volume and change of distance between the antinodes of ultrasonic standing waves. The decrease of the liquid depth does not eliminate ultrasonic standing wave channel.
机译:超声对Ga0.03In0.97Sb单晶拉制过程中熔体中对流的影响已通过光切割法在使用透明液体(甘油水溶液和丙酮)的硬玉坩埚中进行了建模。建立了液体中温度梯度的影响和晶体旋转影响对流形成的影响。结果表明,在没有对流的情况下,在平行于坩埚轴驻波通道的方向上以0.72和1.44 MHz的频率引入超声波。坩埚的球形底部使驻波通道直径在液体体积的顶部增加到30%,并且超声波驻波波腹之间的距离发生了变化。液体深度的减小不会消除超声波驻波通道。

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