Tungsten-based alloys have been widely applied in various industries due to their excellent mechanical properties. Tungsten-based alloys have a high sintering temperature due to the high melting point of tungsten, so the coarse particles negatively affect the mechanical properties of the alloy. This problem can be solved by increasing the densification by reducing the sintering temperature and time by adding nanoparticles with high surface energy. Herein, we fabricated nanoparticle-sized metal oxides by ultrasonic milling to minimize the influx of impurities to improve the densification of tungsten alloys. The main parameters of the ultrasonic milling experiments were ball density and ball layer. Metal oxides prepared by ultrasonic milling showed an average particle size distribution of less than 200 nm, and metal composite powders prepared through subsequent hydrogen reduction also showed nanoparticle size distributions. We believe that this approach will enable the production of improved sintered tungsten-based alloys.

钨基合金由于其优异的机械性能已被广泛应用于各种行业。钨基合金由于钨的高熔点而具有较高的烧结温度，因此粗颗粒会对合金的机械性能产生负面影响。通过添加具有高表面能的纳米颗粒，通过降低烧结温度和时间来增加致密化，可以解决该问题。在这里，我们通过超声研磨制备了纳米尺寸的金属氧化物，以最大程度地减少杂质的流入，从而改善钨合金的致密化。超声研磨实验的主要参数是球密度和球层。通过超声研磨制备的金属氧化物的平均粒径分布小于200 nm，通过随后的氢还原制备的金属复合粉末也显示出纳米粒度分布。我们相信，这种方法将能够生产出改进的烧结钨基合金。