Abstract

This paper proposes a method for rapid cladding of copper powder with aluminum. The optimal parameters (frequency and amplitude of oscillations) of the experimental setup and the dispersity and volume fraction of the interacting powders are determined. The most productive cladding mechanism is considered. Dependences of the coating thickness (from 5 to 25 μm) on copper particles on the temperature (18–600°C) and the time of heating (5–30 s) the powder mixture are determined. It is shown that the highest rates of the coating growth on copper particles and the formation of Al–Cu intermetallic compounds are achieved at the temperatures of Al and Cu recrystallization.

中文翻译：

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铝粉对铜粉的振动熔覆

摘要

本文提出了一种用铝快速熔覆铜粉的方法。确定了实验装置的最佳参数（振荡频率和振幅）以及相互作用粉末的分散度和体积分数。考虑到最有效的覆层机制。确定粉末混合物的温度（18–600°C）和加热时间（5–30 s）取决于铜颗粒上涂层厚度（5至25μm）。结果表明，在Al和Cu重结晶的温度下，可以在铜颗粒上形成最高的涂层生长速率并形成Al-Cu金属间化合物。