采用Cu-Al合金薄板内氧化和热挤压成型相结合的方法制备块体Cu-Al2O3复合材料.φ89.7 mm×0.5 mm的Cu-0.16 mass％ Al合金圆薄片900℃×8h内氧化后,经表面清理、叠层装入包套、密封和800℃热挤压,制备出了φ20 mm的Cu-Al2O3复合材料棒材(块体材料),并经冷拔制备出了生产所需的φ3 mm的线材产品.热挤压棒材和冷拔线材截面呈现出“年轮”结构.热挤压棒材的导电率为96.3％IACS,冷拔线材的导电率、屈服强度和抗拉强度分别为94.1％ IACS、417 MPa和445 MPa.
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