Using graphene for the development of novel aluminum alloys with high thermal conductivityand mechanical properties

技术创新依赖于材料的可用性，这些材料能够维持各种机械、 热、循环或环境条件。全球运输业正在向以下方向转变 车辆的电气化。然而，为了支持这一创新，需要具有目前无法获得的机械、电学和热学性能的新型合金。在这个NSERC-Alliance计划中，一部小说 基于先进粉末冶金工艺(放电等离子烧结，SPS)的多工艺方法将是 与传统的金属铸造工艺相结合，开发出以石墨烯为基础的添加剂的铸造铝合金。 这项拟议的研究建立在英国大学研究人员之间强有力的合作基础上 哥伦比亚、Nemak Canada(汽车市场铝铸件供应商)和Zen Graphene 解决方案有限公司(矿业公司和石墨烯化合物生产商)。众所周知，石墨烯具有极好的 机械性能和热电性能。然而，它的集成(就像其他纳米材料一样)进入 到目前为止，大型铸件还没有成功。支持者最近的工作表明，如果使用SPS技术，石墨烯添加剂可以有效地集成到铝铸件中。因此，这项研究计划侧重于开创性的行业驱动的研究，包括：1)确定最佳的石墨烯添加剂(例如，氧化石墨烯(GO)、还原石墨烯、纯石墨烯)，2)含石墨烯的中间合金的SPS处理，3)实验室规模的金属铸造实验，以确定最佳的添加水平、铸造条件和混合程序，最后，4)发动机机体的全面制造和 气缸盖采用基于石墨烯的添加剂。 这项研究有可能从根本上改变交通运输行业使用的材料。通过开发具有卓越机械和热电性能的超轻铝合金，Nemak和Zen将引领加拿大制造业和采矿业的技术创新，并支持运输行业向电动运输方式的不可避免的全球转变。

Technological innovation relies on the availability of materials capable of sustaining diverse mechanical, thermal, cyclic or environmental conditions. There is a global shift in the transportation industries towards electrification of vehicles. To support this innovation, however, novel alloys with currently unavailable mechanical, electrical and thermal properties are required. In this NSERC-Alliance program, a novel multi-process approach based on advanced powder metallurgy process (Spark Plasma Sintering, SPS) will be combined with a traditional metalcasting process to develop castable Al alloys with graphene-based additives. The proposed research builds on a strong partnership between researchers from The University of British Columbia, Nemak Canada (supplier of aluminum (Al) castings to the automotive market) and ZEN Graphene Solutions Ltd. (mining company and producer of graphene compounds). Graphene is known to have superb mechanical and thermo-electrical properties. However, its integration (much like other nanomaterials) into large-scale castings has not been successful to-date. Recent work by the proponents showed, that if the SPS technology is used, graphene-based additives can be efficiently integrated into aluminum castings. As a result, this research program focuses on pioneering industry-driven research consisting of: 1) Identifying optimal graphene additives (e.g., graphene oxide (GO), reduced-GO, pure graphene), 2) SPS processing of graphene containing master alloys, 3) Lab-scale metalcasting experimentation to determine optimal addition levels, casting conditions and blending procedures, and finally, 4) Full-scale manufacture of engine blocks and cylinder heads with graphene-based additives. This research has the potential to fundamentally transform the materials used in the transportation industries. By developing ultralight Al alloys with superb mechanical and thermo-electric properties, Nemak and ZEN will spearhead the Canadian manufacturing and mining sectors in technological innovation, and support the inevitable global shift in the transportation industries towards electric modes of transport.