Blaschke Daniel N, Carpenter John S, Hunter Abigail
Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
Materials (Basel). 2024 Oct 16;17(20):5049. doi: 10.3390/ma17205049.
Generating high magnetic fields requires materials with not only high electric conductivity but also good strength properties in order to withstand the necessarily strong Lorentz forces. A number of bi-metal composites, most notably Cu/Nb, are considered to be good candidates for this purpose. Here, we generalize our previous work on Cu/Nb in order to predict, from theory, the dependence of electric conductivity on the microstructure and volume fraction of the less conductive component for a number of other bi-metal composites. Together with information on strength properties (taken from previous literature), the conductivity information we provide in this work can help to identify new promising candidate materials (such as Cu/Nb, Cu/Ag, Cu/W, …) for magnet applications with the highest achievable field strengths.
产生强磁场需要不仅具有高电导率而且具有良好强度特性的材料，以便承受必然很强的洛伦兹力。许多双金属复合材料，最显著的是铜/铌，被认为是实现这一目的的良好候选材料。在这里，我们推广我们之前关于铜/铌的工作，以便从理论上预测许多其他双金属复合材料中电导率对导电性较差组分的微观结构和体积分数的依赖性。结合强度特性信息（取自先前文献），我们在这项工作中提供的电导率信息有助于识别新的有前景的候选材料（如铜/铌、铜/银、铜/钨等），用于具有最高可实现场强的磁体应用。
