本发明提供了一种高性能Cu‑Cr合金，其中含有质量百分比计的Al₂O₃0.13-0.6％，Cr0.2-0.6％，余量为铜。本发明还提供了上述高性能Cu‑Cr合金的制备方法。本发明通过内氧化和还原预先制备出Cu‑Al₂O₃弥散强化铜合金粉末，纳米Al₂O₃镶嵌于铜基体中，在设定的温度并且在磁场的搅拌下，可以有效抑制Al₂O₃粒子的聚集，从而实现Cu‑Cr合金耐热和高强度的目标，可以制备出大规格的合金。

The present invention provides a high-performance Cu-Cr alloy, which contains Al₂O₃0.13-0.6%, Cr0.2-0.6%, and the balance is copper. The invention also provides a method for preparing the above-mentioned high-performance Cu-Cr alloy. The present invention prepares Cu-Al₂O₃ dispersion-strengthened copper alloy powder in advance through internal oxidation and reduction. Nano-Al₂O₃ is embedded in the copper matrix. At a set temperature and under the stirring of a magnetic field, the aggregation of Al₂O₃ particles can be effectively inhibited, thereby realizing Cu‑Cr alloys are heat-resistant and high-strength targets, and large-size alloys can be prepared.