It is a challenge in practice to cost-effectively fabricate copper matrix composites having high mechanical properties and outstanding electrical conductivity for electric power applications. This report describes a new and simple mass production strategy that was developed to construct Cu/Nb multilayer composites having an ultra-thin continuous laminated structure processed by accumulative roll bonding (ARB). Benefiting from the synergistic contributions from alternating heterogeneous lamellar structures, regular arrays of interfacial dislocations as well as efficient electron transport channels and a low electron scattering structure, the fabricated Cu/Nb multilayer composites exhibit ultrahigh tensile strengths of ~1.2 GPa while retaining their electrical conductivity, thereby negating the general trade-off between strength and electrical conductivity. This study illustrates that interface strengthening is broadly important to improve the strength of multilayer composites. The excellent performance of the Cu/Nb multilayer composites indicates that these composites, having alternating heterogeneous lamellar structures, are promising for future energy and power applications. More significantly, the proposed method provides a potentially novel process for the high-yield production of nanolaminated composites and thereby gives a robust strategy for the development of structural and multifunctional materials.

在实践中，挑战是如何成本有效地制造具有高机械性能和出色电导率的铜基复合材料，以用于电力应用。该报告描述了一种新的简单的批量生产策略，该策略用于构建具有通过累积辊压键合（ARB）处理的超薄连续层压结构的Cu / Nb多层复合材料。得益于交替的非均质层状结构，规则的界面位错阵列，有效的电子传输通道和低电子散射结构的协同作用，制成的Cu / Nb多层复合材料在保持导电性的同时，具有约1.2 GPa的超高拉伸强度。 ，从而消除了强度和电导率之间的一般权衡。这项研究表明，界面强化对提高多层复合材料的强度具有广泛的重要性。Cu / Nb多层复合材料的出色性能表明，这些具有交替异质层状结构的复合材料有望用于未来的能源和电力应用。更重要的是，提出的方法为纳米层压复合材料的高产量生产提供了一种潜在的新颖方法，从而为开发结构和多功能材料提供了可靠的策略。Cu / Nb多层复合材料的出色性能表明，这些具有交替异质层状结构的复合材料有望用于未来的能源和电力应用。更重要的是，提出的方法为纳米层压复合材料的高产量生产提供了一种潜在的新颖方法，从而为开发结构和多功能材料提供了可靠的策略。Cu / Nb多层复合材料的出色性能表明，这些具有交替异质层状结构的复合材料有望用于未来的能源和电力应用。更重要的是，提出的方法为纳米层压复合材料的高产量生产提供了一种潜在的新颖方法，从而为开发结构和多功能材料提供了可靠的策略。