A controlled alignment of micro-/nano-fillers with anisotropic morphology and properties in a composite matrix will allow developing materials with tailored properties, but which still remains challenging. Here, alignment of graphite plates in Cu matrix was well controlled in a wide range with fine steps by elaborately designed morphologies of copper powders. Polarized Raman scattering demonstrated that a record-high orientation degree could be obtained as assisted by Cu micro-flakes. Furthermore, owing to the improvements on intrinsic thermal conductivity of graphite by hot-pressing and graphite/Cu interface wettability by using in-situ graphene as interlayer, high-performance thermally conductive (~600 W/mK) and light-weight (4.9 g/cm³) graphite/graphene-interlayer/Cu matrix composites were successfully fabricated.

在复合基质中具有各向异性形态和性能的微/纳米填料的可控排列将允许开发具有定制性能的材料，但仍具有挑战性。在这里，通过精心设计的铜粉形态，可以在很宽的范围内以精细的步骤很好地控制石墨在Cu基体中的排列。极化拉曼散射表明，在铜微薄片的辅助下可以获得创纪录的高取向度。此外，由于通过热压改善了石墨的固有导热性，并通过使用原位石墨烯作为中间层改善了石墨/ Cu界面的润湿性，因此具有高性能的导热性（〜600 W / mK）和轻巧的特性（4.9 g /厘米³）成功地制备了石墨/石墨烯中间层/铜基复合材料。