Two plasma beams of different materials were produced from Ti, Zr or Nb cathodes in a triple-cathode vacuum arc deposition apparatus. The cathodes were arranged in a circle centered on the system axis. The plasma produced was transported through a straight plasma duct with an axial magnetic field, into a deposition chamber, in which a single Langmuir probe, an array of probes, or a substrate could be mounted 560 mm from the cathode plane. The saturation ion current produced by one cathode, or by the simultaneous operation of two different cathodes, was measured in vacuum and in a 0.13-2.7 Pa nitrogen background. The spatial distribution of the composition of coatings deposited during simultaneous operation of different cathodes in nitrogen was also studied. It was shown that the ion current produced by each single cathode, and by the simultaneous operation of two cathodes, decreased by a factor of 20-100 when the nitrogen pressure was increased from vacuum to P=2.7 Pa. During simultaneous operation of two cathodes, the ion saturation current was less than the sum of the ion currents produced by each cathode individually when P<0.4 Pa, while the simultaneous ion current was less than the sum of the individual ion currents when P⩾20.4 Pa
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机译:在三阴极真空电弧沉积设备中,从Ti,Zr或Nb阴极产生两种不同材料的等离子体束。阴极布置在以系统轴线为中心的圆形中。产生的等离子体通过具有轴向磁场的直等离子体管道输送到沉积室中,其中单个Langmuir探针,探针阵列或基板可以从阴极平面安装560mm。在真空中测量由一个阴极产生的饱和离子电流,或通过两种不同阴极的同时操作,在0.13-2.7Pa氮背景中测量。还研究了在氮气中不同阴极同时操作期间沉积的涂层组成的空间分布。结果表明,当氮气从真空增加到p = 2.7 pa时,通过每个单个阴极产生的离子电流,并通过两个阴极的同时操作,减少了20-100的因子20-100。在两个阴极的同时操作期间当P <0.4Pa时,离子饱和电流小于由每个阴极产生的离子电流的总和,而当P&GES时,同时离子电流小于各个离子电流的总和; 20.4 PA
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