Abstract—

An experimental apparatus was developed and manufactured to simulate the processes of electric spark plasma sintering. The apparatus allows direct observation and high-speed video recording of chains of powder particles in the channels of a dielectric matrix when passing short pulses of electric current. Tests performed using chains of titanium spherical particles with a diameter of up to 300 μm as an example showed the significant overheating of the contact area at the moment of transmission of a short (~1 ms) electric current pulse that is characteristic of spark plasma sintering. Thus, the developed methodology and installation provide the ability to study the mechanisms of modern technologies for the consolidation of powder materials based on pulsed electricity.

中文翻译：

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电火花等离子烧结过程建模的实验设备

摘要-

开发和制造了一种用于模拟电火花等离子体烧结过程的实验设备。当通过短电流脉冲时，该设备可以直接观察和观察介电基质通道中粉末颗粒链的高速视频记录。以直径最大为300μm的钛球形颗粒链为例进行的测试表明，在传输短电流脉冲（〜1 ms）时，接触面积明显过热，这是火花等离子体烧结的特征。因此，开发的方法和装置提供了研究基于脉冲电的粉末材料固结的现代技术机理的能力。