Discovery and design of inherently layered metal boride MAX and MAB phases

该提案的重点是材料的发现和设计的基础上调查的新的固有的纳米层压MAX和MAB相，这提供了各种可能性，通过同时控制结构和组成的纳米工程。以薄膜多元材料库形式的高通量合成将用于系统有效地探索固有纳米层压材料空间，以寻找具有新颖结构和改进性能的新相，这也是由于其随后转化为2D对应物的潜力。新的三元MAX和MAB相及其合金将得到解决，特别关注有序的四元合金和多元（高熵类）组合物，以改善磁性能。一种新的合成技术，有针对性的元素置换，也将被利用。这项研究计划不仅将扩大MAX和MAB相的家庭与一系列新的三元成员和合金之间，由多维属性图表示系统的数据评估和比较，但也将建立多元合金化和组合合成方法，迄今为止已经很少探索这类材料。

This proposal focuses on materials discovery and design based on investigations of novel inherently nanolaminated MAX and MAB phases, which offer various possibilities for nanoscale engineering through simultaneous control of structure and composition. High-throughput synthesis in form of thin film multinary materials libraries will be employed for systematic efficient exploration of the inherently nanolaminated materials space in search for new phases with novel structures and improved properties, also motivated by their potential for subsequent transformation into 2D counterparts. New ternary MAX and MAB phases and alloys thereof will be addressed, with particular focus on ordered quaternary alloys and multinary (high-entropy-like) compositions for improved magnetic properties. A novel synthesis technique, targeted element replacement, will also be utilized. This research program will not only expand the families of MAX and MAB phases with a range of new ternary members and alloys in between, represented by multi-dimensional property diagrams for systematic data evaluation and comparison, but will also establish multinary alloying and combinatorial synthesis approaches which to date have been very little explored for this class of materials.