Cu and Al₂O₃ nanopowders were synthesized from 3CuO and 2Al by high energy ball milling. The powder sizes of Cu and Al₂O₃ were 14 nm and 133 nm, respectively. A dense nanocrystalline 3Cu-Al₂O₃ composite was consolidated by a high frequency induction heated sintering method within 2 minutes from the mechanically synthesized powders. The average hardness and fracture toughness values of the nanostuctured 3Cu-Al₂O₃ composite were 520 kg/mm² and 5 Mpa·m^1/2, respectively.

中文翻译：

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纳米晶Cu-Al的机械合成和快速固结2Ø3 高频感应加热烧结复合

通过高能球磨由3CuO和2Al合成了Cu和Al ₂ O ₃纳米粉。Cu和Al ₂ O ₃的粉末尺寸分别为14nm和133nm。通过机械感应合成粉末，在2分钟内通过高频感应加热烧结法将致密的纳米晶3Cu-Al ₂ O ₃复合材料固结。纳米结构的3Cu-Al ₂ O ₃复合材料的平均硬度和断裂韧性值分别为520 kg / mm ²和5 Mpa·m ^1/2。