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首页> 外文会议>7th International Conference on Electromagnetic Processing of Materials >Design of two-phase inductor circuit for the floating-zone crystal growth
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Design of two-phase inductor circuit for the floating-zone crystal growth

机译：浮区晶体生长的两相电感器电路设计

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The present work is concerned with the growth of small-diameter single intermetallic compound crystals by the floating-zone method using a radio frequency(RF)induction heating.In order to maintain a convex solidification interface,which is required for the growth of single crystals,we have developed a novel two-phase inductor comprising a secondary coil,which is short-circuited through capacitor and resistor.The former is adjusted to have resonance in the secondary circuit,which results in a 90 degrees phase lag of the secondary current relative to the primary one.However,it is not always possible to tune the secondary circuit into the resonance as it turns out to be incompatible with the operation of contemporary self-tuning RF-generators.We show that the resonance frequency is unstable unless the resistance of the secondary circuit is made high enough.Analytical results are confirmed by both numerical simulation of the circuit system using the Simulink and measurements on the floating-zone crystal growth facility equipped with a two-phase inductor.
机译：目前的工作涉及利用射频感应加热的浮区法生长小直径的单金属间化合物晶体。为了保持凸形凝固界面，这是单晶生长所必需的，我们开发了一种新型的两相电感器，该电感器包括一个次级线圈，该次级线圈通过电容器和电阻器短路。对前者进行了调整，使其在次级电路中产生谐振，从而导致次级电流相对于90度的相位滞后但是，并非总是可能将次级电路调谐到谐振中，因为它与现代的自调谐射频发生器的运行不兼容。我们证明，除非有电阻，否则谐振频率是不稳定的通过使用Simulink对电路系统进行数值模拟以及对浮点进行测量，可以确认分析结果配备两相电感器的g区晶体生长设备。

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