A pulsed high magnetic field device based on the inductively coupled coil concept [D. H. Barnak , Rev. Sci. Instrum., 033501 (2018)] is described. The device can be used for studying magnetized high-energy-density plasma and is capable of producing a pulsed magnetic field of 30 T inside a single-turn coil with an inner diameter of 6.5 mm and a length of 6.3 mm. The magnetic field is created by discharging a high-voltage capacitor through a multi-turn solenoid, which is inductively coupled to a small single-turn coil. The solenoid electric current pulse of tens of kA and a duration of several s is inductively transformed to hundreds of kA in the single-turn coil, thus enabling a high magnetic field. Unlike directly driven single-turn systems that require a high-current and low-inductive power supply, the inductively coupled system operates using a relatively low-current power supply with very relaxed requirements for its inductance. This arrangement significantly simplifies the design of the power supply and also makes it possible to place the power supply at a significant distance from the coil. In addition, the device is designed to contain possible wire debris, which makes it attractive for debris-sensitive applications.

We report a two-step process for the continuous production of monodisperse polystyrene colloidal ellipsoids of aspect ratios up to 6.8 at rates that exceed 1.0 g per day, an improvement on previously reported synthetic batch processing rates of nearly a factor of 20. This scale up is accomplished by continuous evaporative processing of a polymer solution into an elastomeric film embedded with colloidal spheres. Subsequently, the film is continuously elongated at a temperature that stretches the embedded spheres into ellipsoids. The method is used to deform initially 1.0 lm diameter spheres into ellipsoids of aspect ratio 1.27 6 0.15, 3.31 6 0.44, 3.91 6 0.72, 4.14 6 0.47, and 6.77 6 1.01. The particle production rate reported here opens new possibilities for applications of monodisperse ellipsoids, such as self-assembly and optical characterization of complex crystalline unit cells, as well as rheological characterization of dilute gels and dense suspensions.The film is 330 cm long, 10 cm wide, and~150 lm thick. 515 mL of PVA solution was processed in the fabrication of this film. The leading 270 cm (415 mL solution) contains a colloid particle concentration of 3.0 mg/mL, the lagging 60 cm (100 mL solution) is free of particles. [Color figure can be viewed at wileyonlinelibrary.com] AIChE Journal a Estimate based on reported curing time for similar-sized film form Crassous et al. Production per day is reported as the mass of particles yielded per batch on a 24-h time scale of processing. The final column reports the highest fractional (percent) yield, as defined in the text. The 4-day batch processing time for the report from Palangetic et al. is not a direct report, but instead, an estimate based on curing times for similar-sized films in Crassous et al. 28

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