The effect of fluid flow on crystal nucleation in supercooled liquids is not well understood. The variable density and temperature gradients in the liquid make it difficult to study this under terrestrial gravity conditions. Nucleation experiments were therefore made in a microgravity environment using the Electromagnetic Levitation Facility on the International Space Station on a bulk glass-forming Zr₅₇Cu_15.4Ni_12.6Al₁₀Nb₅ (Vit106), as well as Cu₅₀Zr₅₀ and the quasicrystal-forming Ti_39.5Zr_39.5Ni₂₁ liquids. The maximum supercooling temperatures for each alloy were measured as a function of controlled stirring by applying various combinations of radio-frequency positioner and heater voltages to the water-cooled copper coils. The flow patterns were simulated from the known parameters for the coil and the levitated samples. The maximum nucleation temperatures increased systematically with increased fluid flow in the liquids for Vit106, but stayed nearly unchanged for the other two. These results are consistent with the predictions from the Coupled-Flux model for nucleation.

流体流动对过冷液体中晶体成核的影响尚不清楚。液体中可变的密度和温度梯度使得在地球重力条件下很难研究这一点。因此，在微重力环境中，使用国际空间站上的电磁悬浮设施在块状玻璃形成的 Zr ₅₇ Cu _15.4 Ni _12.6 Al ₁₀ Nb ₅ (Vit106) 以及 Cu ₅₀ Zr ₅₀和准晶体上进行了成核实验。成形 Ti _39.5 Zr _39.5 Ni ₂₁液体。通过将射频定位器和加热器电压的各种组合应用于水冷铜线圈，测量每种合金的最大过冷温度作为受控搅拌的函数。根据线圈和悬浮样品的已知参数模拟流动模式。Vit106 的最大成核温度随着液体中流体流量的增加而系统地增加，但其他两个几乎保持不变。这些结果与耦合通量模型的成核预测一致。