【摘要】 在高能球磨机中用两种方法合成Cu/TiC材料,方法一:将配好的Ti和C原子比为1∶1的粉末放入氩气保护下的球磨机中球磨不同时间后,再将铜粉末加入一起球磨不同的时间;方法二:将不同比例的铜、钛、碳粉末一起加入氩气保护下的球磨机中球磨不同时间。将球磨得到的粉末进行烧结。应用X射线衍射、电子显微镜等分析了它们的微观结构,发现方法一可得到较细小的第二相强化颗粒TiC。更多还原

【Abstract】 Cu/TiC composite was fabricated by mechanical alloying, using raw powders of Ti, Cu and C. There were two processes to fabricate the powder. For the first one, the powders of Ti and C with a mole ratio of Ti∶C equal 1 were milled in ball milling for different times at first, and then powder of Cu was added and milled in the ball milling for different time. For the second one, the powders of Ti, C and Cu were milled for different times in the ball milling. The products were analyzed by XRD and EPMA.The results indicated that finer particles of TiC could be obtained using the first process.更多还原