This study investigated how powder preparation during WC-10Co production with the addition of 10 wt% Al₂O₃ influenced its microstructural and mechanical properties. Powders were mixed with a mechanical shaker for 10 min and high energy milling for 2, 6, 10, 20, 30, and 50 h. The powders were then compacted at 200 MPa and sintered in a resistive dilatometric furnace for one hour, under an argon atmosphere, at a heating rate of 10 °C / min, and two sintering temperatures (1400 °C and 1550 °C). XRD and SEM/EDS analyses were carried out for both powders, which were sintered in order to examine their composition and morphology. The sintered powders were also characterized in terms of mechanical properties, densification, and dilatometric shrinkage. The results show that samples milled for 50 h and sintered at 1550 °C exhibited microstructures with denser phases than those of samples mixed in the shaker. The properties measured were around 68%, 45%, −0.30, and 280 HV for relative density, densification, dilatometric shrinkage, and hardness, respectively.

这项研究调查了如何在WC-10Co生产过程中添加10 wt％Al ₂ O _3来制备粉末影响了它的微观结构和力学性能。将粉末与机械振动器混合10分钟，高能研磨2、6、10、20、30和50小时。然后将粉末在200 MPa下压实，并在氩气气氛中以10℃/ min的加热速率和两个烧结温度（1400℃和1550℃）在电阻式膨胀炉中烧结1小时。对两种粉末均进行了XRD和SEM / EDS分析，然后对其进行烧结以检查其组成和形态。烧结粉末还通过机械性能，致密化和膨胀收缩来表征。结果表明，与在振动筛中混合的样品相比，研磨50 h并在1550°C烧结的样品显示出具有密相的微观结构。测得的性能约为68％，45％，-0.30，