Abstract Identifying a solution to directly transform waste printed circuit boards (PCBs) to useful alloys will save energy, conserve our valuable resources, and contribute to preservation of our environment. In this study a solid state mechanical alloying was used to directly convert waste PCBs to a homogenous nanostructured alloy (Cu79-Zn13-Fe3-Sn3-Ni1). Electron microscopy analysis showed 10 h milling time after a short period of cryomilling was enough to obtain a homogenous alloy and SAED ring pattern confirmed the nano-structure, although just a portion of particles size of the power was in nano-scale (

中文翻译：

---

通过机械合金化将废弃印刷电路板直接转化为纳米结构粉末

摘要 确定将废弃印刷电路板 (PCB) 直接转化为有用合金的解决方案将节省能源、保护我们宝贵的资源并有助于保护我们的环境。在这项研究中，固态机械合金化用于将废 PCB 直接转化为均匀的纳米结构合金 (Cu79-Zn13-Fe3-Sn3-Ni1)。电子显微镜分析表明，经过短时间的低温研磨后，10 小时的研磨时间足以获得均匀的合金，SAED 环形图案证实了纳米结构，尽管只有一部分颗粒尺寸为纳米级（