本研究發展出了結合了粉末冶金和等通道轉角擠型的製程。基於Segal所設計的H型擠桿，加上適當的修改後，可以在室溫下成功的完成銅粉以及銅粉加氧化鋁粉粉末擠錠的擠型，形成塊材。分析擠型過程中所需要的力量，可以發現主要都是為了要克服擠型過程中產生的摩擦力。
本研究所製造出的 Cu – 0.5 ~ 5 % Al2O3在經過第一道擠型之後就可以達到98 %的理論密度。銅的基材在經過奈米氧化鋁顆粒強化之後，可以獲得奈米等級的晶粒。在600 oC退火一小時候，晶粒大小仍然維持在200 nm。該材料具有高導電度，很好的機械性質，以及優異的抗軟化能力。經過一道擠型之後，可以獲得Hv 140 ~ 160的硬度。當氧化鋁的含量高於0.5 wt%，經過400 oC退火一個小時後硬度可以維持在Hv 92以上，導電度則達到90 %IACS。400 oC退火過的材料，即使再次加熱到1000 oC，軟化的程度仍然在20 %以內。

In this study, a process combining powder metallurgy and equal channel angular extrusion (ECAE) was developed. By a modified ECAE die based on Segal’s H plunger design, Cu and Cu + Al2O3 powder billet can be successfully extruded at room temperature to form a bulk material. The load needed during extrusion was analyzed and it is contributed mainly by adhesion friction.
The Cu – 0.5 ~ 5 % Al2O3 bulk materials produced in this study reached 98% of its theoretical density in the first pass. The Cu matrix strengthened by nano-sized Al2O3 particles has a grain size of nanometer scale. The grain size of the material remains at 200 nm after annealing at 600 oC for one hour. The material shows good electrical and mechanical properties and excellent softening resistance. Hardness in the range of Hv 140 to 160 can be obtained after first extrusion. For billets that contains Al2O3 more than 0.5 wt%, hardness higher than Hv 92 and conductivity higher than 90% IACS were obtained after annealing at 400 oC for one hour. After annealing at 400 oC for one hour, less than 20 % softening could be found even further heat to 1000 oC for one hour.

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